{"id":44330,"date":"2026-01-24T09:00:33","date_gmt":"2026-01-24T05:30:33","guid":{"rendered":"https:\/\/pardisnoor.mdstr.website\/cancer-radiotherapy\/"},"modified":"2026-04-28T11:14:32","modified_gmt":"2026-04-28T07:44:32","slug":"cancer-radiotherapy","status":"publish","type":"post","link":"https:\/\/www.pardisnoor.com\/en\/cancer-radiotherapy\/","title":{"rendered":"Radiotherapy (Radiation Therapy): A Precise, Non-Surgical Approach to Cancer Treatment"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) is one of the most effective and widely used methods for treating cancer. By utilizing high-energy radiation, it precisely targets and destroys cancer cells without the need for surgical incisions. This approach can play a pivotal role in controlling and treating cancer, either as a standalone treatment or in combination with surgery and chemotherapy.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">What is radiotherapy?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy is a treatment method that uses high-energy ionizing radiation (such as X-rays or gamma rays) to destroy the DNA of cancer cells. This radiation prevents cancer cells from growing and dividing, ultimately leading to their gradual destruction. A key feature of radiotherapy is its precise focus on the tumor area while maximizing the protection of surrounding healthy tissues\u2014an approach that has become increasingly feasible with advancements in modern radiation therapy technologies.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">How does radiotherapy help in treating cancer?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) uses high-energy beams to directly damage cancer cells, eliminating their ability to grow and divide. These beams destroy the DNA of cancer cells, preventing them from repairing themselves and leading to their gradual destruction, while efforts are made to preserve the surrounding healthy tissues as much as possible. Radiotherapy contributes to cancer treatment in various ways, including:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Direct destruction of cancer cells and prevention of their proliferation.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Reducing the size of the tumor before surgery to simplify the surgical procedure.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Eliminating residual cells after surgery to reduce the likelihood of disease recurrence.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Controlling cancer growth in cases where a definitive cure is not possible.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Reducing symptoms of the disease, such as pain, bleeding, or pressure on vital organs.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">One of the key advantages of radiotherapy is that it can be used either as a standalone treatment or in combination with other therapeutic methods such as surgery and chemotherapy. For this reason, radiotherapy plays an effective role in enhancing treatment outcomes and improving quality of life at various stages of the disease, tailored to the specific conditions of each patient.<\/span><\/p>\n<figure id=\"attachment_44734\" aria-describedby=\"caption-attachment-44734\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-44734\" src=\"https:\/\/en.pardisnoor.mdstr.website\/wp-content\/uploads\/2026\/01\/radiotherapy-1.webp\" alt=\"radiotherapy\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.pardisnoor.com\/en\/wp-content\/uploads\/2026\/01\/radiotherapy-1.webp 1024w, https:\/\/www.pardisnoor.com\/en\/wp-content\/uploads\/2026\/01\/radiotherapy-1-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-44734\" class=\"wp-caption-text\">radiotherapy<\/figcaption><\/figure>\n<h2><span style=\"font-weight: 400;\">Types of Radiotherapy<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) is categorized into various types based on the method of radiation delivery and the location of the radiation source. The choice of radiotherapy type depends on the type of cancer, the tumor&#8217;s location, the stage of the disease, and the patient&#8217;s overall condition. The most important types of radiotherapy include:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">External Beam Radiotherapy (EBRT)<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In this method, beams are directed at the tumor from outside the body using advanced devices such as a linear accelerator.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This type of radiotherapy is the most common method of radiation therapy and is used in the treatment of various cancers. Features:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Without the need for surgery<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">High precision in tumor targeting<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Suitable for most cancers.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">Internal Radiotherapy (Brachytherapy)<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In brachytherapy, the radiation source is placed temporarily or permanently inside or near the tumor. This approach allows a high dose of radiation to directly target the tumor while minimizing damage to surrounding tissues. Applications:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Cervical cancer<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Prostate cancer<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Some head and neck cancers<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">Adaptive and Advanced Radiotherapy<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Modern radiotherapy techniques enable more precise control over the intensity and direction of radiation, making them highly beneficial for tumors located near sensitive organs. Advantages:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Reducing damage to healthy tissue<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Improving treatment precision<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Reducing side effects<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">Palliative Radiotherapy<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In this type of radiotherapy, the goal is not a definitive cure but rather the alleviation of symptoms such as pain, bleeding, or pressure exerted by the tumor on organs. This approach plays a significant role in improving the quality of life for patients with advanced conditions.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">In which types of cancer is radiotherapy used?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) is one of the primary methods for treating cancer. Depending on the type, location, and stage of the disease, it can be used either alone or in combination with surgery and chemotherapy. This approach aims to destroy cancer cells and control tumor growth and is applicable to a wide range of cancers. The most common cancers treated with radiotherapy include:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Breast cancer<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Radiotherapy plays an important role in the treatment of breast cancer and is typically:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">After surgery to eliminate the remaining cells.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">To reduce the likelihood of disease recurrence<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Or, in some cases, as the primary treatment.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">It is used.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Head and Neck Cancers<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In head and neck cancers, radiotherapy can:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">An alternative to surgery in certain patients<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Either in combination with surgery and chemotherapy.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">It helps maintain organ function.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Prostate cancer<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Radiation therapy is one of the common and effective treatments for prostate cancer.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">It can serve as an alternative to surgery for certain patients.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Or it may be used after surgery to reduce the risk of disease recurrence.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">Lung cancer<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In lung cancer, radiotherapy is determined based on the stage of the disease.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">For definitive treatment<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Or controlling tumor growth and reducing symptoms<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">It is used.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Brain tumors<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Radiotherapy plays a role in the treatment of many brain tumors and can:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">After surgery to eliminate the remaining cells.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Or, in cases where surgery is not feasible, as the primary treatment.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">To be used.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Women&#8217;s Cancers<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In cancers such as:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Cervical cancer<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Cervical cancer<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Radiotherapy, particularly brachytherapy, is considered one of the important treatment methods.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Other cancers<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Radiotherapy is also used in the treatment of the following cancers:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Gastrointestinal cancers<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Skin cancer<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Bone cancers<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Certain types of blood and lymphatic cancers<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Radiotherapy is a versatile and effective method used in the treatment of various cancers, ranging from early to advanced stages. The decision to use radiotherapy and the approach to its administration are always determined based on the medical team&#8217;s recommendations and the specific conditions of each patient.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">How is radiotherapy performed?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) is a planned and precise process carried out in several stages to ensure that the radiation is delivered directly to the tumor while minimizing damage to healthy tissues. The procedure is typically painless and performed on an outpatient basis. The main steps of radiotherapy can be summarized as follows:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">1. Initial Visit and Evaluation<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Initially, the patient is examined by a radiation therapy\u2013oncology specialist. At this stage:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The type of cancer and the location of the tumor are being examined.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The treatment goal (curative or palliative) is determined.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The number of sessions and the radiation dose are determined.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">2. Imaging and Treatment Planning<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">To enhance treatment precision, the necessary imaging is performed (usually a CT scan specifically for planning). Then:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The exact location of the tumor and the surrounding sensitive organs is determined.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The path and intensity of the beams are meticulously designed with precision.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">In some patients, a custom mold or special mask is used to keep the body stable.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">3. Initiation of radiotherapy sessions<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">After the treatment plan is prepared:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The patient is positioned on the device bed in a specified manner.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The device operates without physical contact with the body, emitting beams toward the target area.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Each session usually doesn&#8217;t take more than a few minutes.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Radiation therapy itself is painless, and the patient does not feel anything.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">4. Repeat the sessions as per the schedule.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Radiotherapy is typically administered over several sessions per week and over a period of several weeks. Dividing the sessions helps to:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Cancer cells gradually die off.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Healthy tissues should have the opportunity to repair themselves.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">5. Follow-up and care during treatment<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">During the course of radiotherapy:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The patient&#8217;s condition is being monitored regularly.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Potential complications are managed effectively.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">If necessary, treatment adjustments will be made.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Radiotherapy is a precise, targeted, and non-invasive treatment that is carried out using specialized planning and advanced equipment. Proper execution of these steps enhances the effectiveness of the treatment while minimizing side effects.<\/span><\/p>\n<figure id=\"attachment_44733\" aria-describedby=\"caption-attachment-44733\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-44733\" src=\"https:\/\/en.pardisnoor.mdstr.website\/wp-content\/uploads\/2026\/01\/radiotherapy-2.webp\" alt=\"radiotherapy\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.pardisnoor.com\/en\/wp-content\/uploads\/2026\/01\/radiotherapy-2.webp 1024w, https:\/\/www.pardisnoor.com\/en\/wp-content\/uploads\/2026\/01\/radiotherapy-2-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-44733\" class=\"wp-caption-text\">radiotherapy<\/figcaption><\/figure>\n<h2><span style=\"font-weight: 400;\">Is radiotherapy painful?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">No, the process of undergoing radiotherapy (radiation therapy) itself is not painful. During the radiation exposure, the patient does not feel any pain, burning, or specific sensations. The radiation beams are invisible and are directed at the target area without making direct contact with the body. However, some patients may experience temporary side effects during or after the treatment period. These side effects typically depend on the area being treated and the duration of the radiotherapy, rather than the radiation exposure process itself.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Points to Keep in Mind:<\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The radiotherapy session itself is completely painless.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Each session lasts only a few minutes.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The patient can return to their daily activities after each session.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">Possible complications that might be mistaken for pain:<\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">General fatigue<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Redness or skin sensitivity in the treatment area<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">A sensation of dryness or localized inflammation<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Hair loss occurs only in the area that has been exposed to radiation.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These side effects are usually temporary and manageable, gradually subsiding after the completion of treatment.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Potential Side Effects of Radiotherapy<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) is generally a targeted and safe method; however, like any cancer treatment, it may be associated with certain side effects. The severity and type of these side effects depend on factors such as the radiation site, treatment dose, number of sessions, and the patient\u2019s overall condition. Importantly, most side effects of radiotherapy are temporary and manageable.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Common Side Effects of Radiotherapy<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">These side effects are observed in many patients and usually diminish gradually after the completion of treatment.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">General fatigue and lethargy<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Redness, dryness, or skin sensitivity in the treated area.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Skin changes resembling mild sunburn<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Hair loss occurs only in the area that has received radiation.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">Treatment site-related complications<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The side effects may vary depending on the area of the body where radiotherapy is performed.<\/span><\/p>\n<h4><span style=\"font-weight: 400;\">Head and Neck Radiotherapy:<\/span><\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Dry mouth<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Sore throat or difficulty swallowing<\/span><\/li>\n<\/ul>\n<h4><span style=\"font-weight: 400;\">Chest Radiotherapy:<\/span><\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Cough or a feeling of heaviness in the chest<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Abdominal and Pelvic Radiotherapy:<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nausea or loss of appetite<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Diarrhea or gastrointestinal changes<\/span><\/li>\n<\/ul>\n<h4><span style=\"font-weight: 400;\">Late complications (less common)<\/span><\/h4>\n<p><span style=\"font-weight: 400;\">In rare cases, certain side effects may appear months or even years after the completion of treatment. These occurrences are uncommon and can usually be minimized with careful treatment planning.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">How can the side effects of radiotherapy be managed?<\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Following the advice of the doctor and nurse.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Proper care for the skin in the treatment area<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Adequate rest and proper nutrition<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Report any unusual symptoms to the medical team.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The side effects of radiotherapy in most patients are mild to moderate and temporary, and they can be managed with proper care. Being aware of these side effects and maintaining regular medical follow-ups help ensure the treatment is carried out with minimal discomfort and maximum effectiveness.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Which patients are candidates for radiotherapy?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) is not prescribed uniformly for all cancer patients. The decision to proceed with radiotherapy depends on the type of cancer, the location of the tumor, the stage of the disease, the patient\u2019s overall condition, and the recommendations of the treatment team. Generally, the following groups are the most likely candidates for radiotherapy:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Patients whose cancer responds to radiotherapy.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Some cancers exhibit high sensitivity to radiation, and radiotherapy can be utilized either as the primary treatment or as part of a comprehensive treatment plan. Examples include breast cancer, prostate cancer, head and neck cancers, and certain brain tumors.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Patients who require tumor shrinkage prior to surgery.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In certain cases, radiotherapy is performed prior to surgery to reduce the size of the tumor, making the surgical procedure simpler and more effective.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Patients who require additional treatment following surgery.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">After cancer surgery, microscopic cancer cells may remain at the site. Post-surgical radiotherapy helps to address this.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The risk of disease recurrence may decrease.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">To achieve more comprehensive treatment<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">Patients for whom surgery is not feasible.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In individuals who are not suitable candidates for surgery due to advanced age, underlying medical conditions, or the sensitive location of the tumor, radiotherapy can serve as an effective alternative to surgery.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Patients who require symptom relief.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In advanced stages of cancer, radiotherapy is used as palliative treatment to alleviate symptoms such as:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Pain<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Bleeding<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Pressure of the tumor on the organs<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">It is used and plays an important role in improving the quality of life.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Patients receiving radiotherapy in combination with other treatments.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In many patients, radiotherapy is combined with chemotherapy or targeted therapies to enhance the effectiveness of treatment.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Radiotherapy is a targeted and flexible treatment method applicable to a wide range of cancer patients. The selection of this approach is always based on a thorough evaluation of the patient&#8217;s condition and a collaborative decision by the medical team to achieve the best therapeutic outcome.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Advantages of Radiotherapy<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) is one of the most effective methods for treating cancer. With a targeted and non-invasive approach, it plays a significant role in controlling the disease and improving treatment outcomes. This method can be used either alone or in combination with other therapies, offering numerous benefits to patients. The key advantages of radiotherapy include:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Targeted therapy without surgery<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The beams are precisely focused on the tumor and, in many cases, eliminate cancer cells without the need for surgical incisions.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Preserving the healthy tissues surrounding the tumor<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">By utilizing advanced technologies, damage to the healthy tissues surrounding the tumor is minimized.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Suitable for use at various stages of the disease.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Radiotherapy can be used before surgery, after surgery, as a primary treatment, or for palliative purposes.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">The possibility of combining with other treatment methods<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Radiation therapy integrates effectively with surgery, chemotherapy, and targeted treatments, enhancing the overall efficacy of the treatment.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Reduction of symptoms and improvement in quality of life<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In advanced patients, radiotherapy can alleviate pain, bleeding, or the pressure exerted by the tumor on organs.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Performed as an outpatient procedure without anesthesia.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Most radiotherapy sessions are performed on an outpatient basis and do not require hospitalization or anesthesia.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Suitable for a wide range of patients.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Even patients who are not candidates for surgery due to physical conditions or advanced age can benefit from radiotherapy.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Radiotherapy (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Radiation_therapy\" target=\"_blank\" rel=\"noopener\">Radiation therapy<\/a> With its combination of high precision, appropriate safety, and significant effectiveness, it is considered one of the main pillars of cancer treatment in modern medicine. Choosing this method correctly can play a crucial role in disease management and improving patients&#8217; quality of life.<\/span><\/p>\n<figure id=\"attachment_44732\" aria-describedby=\"caption-attachment-44732\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-44732\" src=\"https:\/\/en.pardisnoor.mdstr.website\/wp-content\/uploads\/2026\/01\/radiotherapy-3.webp\" alt=\"radiotherapy\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.pardisnoor.com\/en\/wp-content\/uploads\/2026\/01\/radiotherapy-3.webp 1024w, https:\/\/www.pardisnoor.com\/en\/wp-content\/uploads\/2026\/01\/radiotherapy-3-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-44732\" class=\"wp-caption-text\">radiotherapy<\/figcaption><\/figure>\n<h2><span style=\"font-weight: 400;\">Frequently Asked Questions<\/span><\/h2>\n<h3><span style=\"font-weight: 400;\">How many sessions does radiotherapy take?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The number of radiotherapy sessions depends on the type of cancer, the location of the tumor, the treatment goal, and the patient&#8217;s condition. In some cases, treatment is completed in a limited number of sessions, while for other patients, it may extend over several weeks with multiple sessions per week. The precise treatment plan is determined by the radiotherapy specialist.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Does radiotherapy cause hair loss?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Hair loss during radiotherapy occurs only in the area exposed to radiation. For instance, if radiotherapy is performed on the head, hair loss may be observed in that specific region. However, radiotherapy targeting other parts of the body will not cause hair loss on the scalp.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Does radiotherapy cause radiation to spread to others?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In external radiotherapy, the patient does not retain any radiation in their body after the session, and it is completely safe for them to interact with others. Only in certain specific types of internal radiotherapy might the doctor provide temporary recommendations to maintain distance, which will be explained to the patient in detail.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Does radiotherapy always cause severe side effects?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">No, the severity of radiotherapy side effects is not the same for all patients. Many patients experience only mild and temporary side effects, such as fatigue or skin sensitivity. With careful treatment planning and adherence to recommended care guidelines, these side effects can be minimized.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Can radiotherapy alone cure cancer?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In certain types of cancer and specific stages of the disease, radiotherapy can be used as the primary and definitive treatment. In other cases, radiation therapy is combined with surgery or chemotherapy to enhance the effectiveness of the treatment. The final decision is always made by the cancer treatment team.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Summary<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Radiotherapy (radiation therapy) is one of the primary and effective methods for treating cancer. It uses high-energy radiation to precisely target and destroy cancer cells without the need for surgery. This approach can be utilized as the main treatment, as an adjunct therapy following surgery or chemotherapy, or to alleviate symptoms and improve the quality of life for patients. The decision to use radiotherapy is always based on the type of cancer, the stage of the disease, and the specific condition of each patient, and it is determined in consultation with the treatment team. Radiotherapy can play a significant role in disease control and the success of treatment.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Radiotherapy (radiation therapy) is one of the most effective and widely used methods for treating cancer, which uses high-energy beams to target and destroy cancer cells without the need for surgical incision. This method can play a key role in controlling and treating cancer, either on its own or alongside surgery and chemotherapy. Radio [\u2026]<\/p>\n","protected":false},"author":3,"featured_media":43982,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50],"tags":[],"class_list":["post-44330","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/posts\/44330","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/comments?post=44330"}],"version-history":[{"count":6,"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/posts\/44330\/revisions"}],"predecessor-version":[{"id":44735,"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/posts\/44330\/revisions\/44735"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/media\/43982"}],"wp:attachment":[{"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/media?parent=44330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/categories?post=44330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pardisnoor.com\/en\/wp-json\/wp\/v2\/tags?post=44330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}