What are the worst side effects of radiotherapy?

Specific side effects of radiation therapy that affect parts of the body
  • Headaches.
  • Hair loss.
  • Nausea.
  • Vomiting.
  • Extreme tiredness (fatigue)
  • Hearing loss.
  • Skin and scalp changes.
  • Trouble with memory and speech.
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How long does it take to recover from radiation therapy?

Most side effects generally go away within a few weeks to 2 months of finishing treatment. But some side effects may continue after treatment is over because it takes time for healthy cells to recover from the effects of radiation therapy. Late side effects can happen months or years after treatment.
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What is the main danger when treating cancer with radiotherapy?

As well as killing cancer cells, radiotherapy can damage some healthy cells in the area being treated. This can cause some side effects, such as: sore, red skin. feeling tired.
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What are the three main adverse effects of radiotherapy?

Ask your care team about the side effects you might get.
  • Sore skin. In some people, radiotherapy can make the skin sore and red (similar to sunburn), darker than normal or dry and itchy. ...
  • Tiredness. ...
  • Hair loss. ...
  • Feeling sick. ...
  • Problems eating and drinking. ...
  • Diarrhoea. ...
  • Stiff joints and muscles. ...
  • Sex and fertility issues.
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What is the most common acute side effect of radiation treatment?

Fatigue is the most common acute side effect of radiation therapy. It is believed to be caused by the large amount of energy that is used by the body to heal itself in response to radiation therapy. Most people begin to feel fatigued about 2 weeks after radiation treatments begin.
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What are the side effects of radiation therapy?



How many sessions of radiotherapy is normal?

Most people have 5 treatments each week (1 treatment a day from Monday to Friday, with a break at the weekend). But sometimes treatment may be given more than once a day or over the weekend.
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Is radiation worse than chemo?

The radiation beams change the DNA makeup of the tumor, causing it to shrink or die. This type of cancer treatment has fewer side effects than chemotherapy since it only targets one area of the body.
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What is the success rate of radiation therapy?

When it comes to early stages of disease, patients very frequently do well with either brachytherapy or external beam radiation. Success rates of around 90% or higher can be achieved with either approach.
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Is radiation worth the risk?

Radiation therapy (also called radiotherapy) is a highly effective cancer treatment with wide-ranging uses. Radiation therapy leads to cancer cure in many patients (either alone or with other treatments) and relieves symptoms or prolongs survival in more advanced cancers.
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Do tumors grow back after radiation?

Normal cells close to the cancer can also become damaged by radiation, but most recover and go back to working normally. If radiotherapy doesn't kill all of the cancer cells, they will regrow at some point in the future.
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What does radiation fatigue feel like?

Feeling very tired and lacking energy (fatigue) for day-to-day activities is the most common side effect of radiation therapy to any area of the body. During treatment, your body uses a lot of energy dealing with the effects of radiation on normal cells.
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How long does it take for a tumor to shrink after radiation?

At the same time, if a cell doesn't divide, it also cannot grow and spread. For tumors that divide slowly, the mass may shrink over a long, extended period after radiation stops. The median time for a prostate cancer to shrink is about 18 months (some quicker, some slower).
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How long after radiation do you start to feel better?

Most side effects go away within 1–2 months after you have finished radiation therapy.
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What should you not do during radiation?

Avoid raw vegetables and fruits, and other hard, dry foods such as chips or pretzels. It's also best to avoid salty, spicy or acidic foods if you are experiencing these symptoms. Your care team can recommend nutrient-based oral care solutions if you are experiencing mucositis or mouth sores caused by cancer treatment.
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What happens after you finish radiation therapy?

Radiation therapy usually does not have an immediate effect, and it could take days, weeks or months to see any change in the cancer. The cancer cells may keep dying for weeks or months after the end of treatment. It may be some time before you know whether the radiation therapy has controlled the cancer.
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Which cancers are treated with radiotherapy?

  • Liver cancer. A type of cancer that starts in the cells of the liver. ...
  • Lung cancer. Cancer that usually starts in the lining of lungs, but can also begin in other areas of the respiratory system.
  • Lymphoma. ...
  • Metastatic brain cancer. ...
  • Meningioma. ...
  • Non-Hodgkin's lymphoma. ...
  • Osteosarcoma. ...
  • Pancreatic cancer.
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Is six weeks of radiation a lot?

Treatments are usually given five days a week for six to seven weeks. If the goal of treatment is palliative (to control symptoms) treatment will last 2-3 weeks in length. Using many small doses (fractions) for daily radiation, rather than a few large doses, helps to protect the healthy cells in the treatment area.
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What are the disadvantages of radiation?

Side Effects
  • Hair loss. Hair loss is common among most cancer treatments. ...
  • Skin irritation. If radiation is focused on one area of your body, that patch of skin may become sensitive, dry, or irritated.
  • Dry mouth, sore throat, and difficulty swallowing. ...
  • Nausea, bladder infection, diarrhea, or frequent urination.
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How do you know if radiotherapy is working?

There are a number of ways your care team can determine if radiation is working for you. These can include: Imaging Tests: Many patients will have radiology studies (CT scans, MRI scans, PET scans) during or after treatment to see if/how the tumor has responded (gotten smaller, stayed the same, or grown).
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Can radiotherapy be fatal?

Radiation pneumonitis is also a common toxicity after thoracic radiotherapy, and severe pneumonitis causes hypoxia and death. However, the incidence and risk factors of treatment-related death from the treatment of advanced cancer using chemotherapy and/or thoracic radiotherapy are not well understood.
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Is there a lifetime limit on radiation treatments?

Most guidelines are given as annual radiation limits, usually at 20 millisieverts (mSv/y). Some authors have suggested, however, that a lifetime maximum radiation limit of 400 mSv also is appropriate. Guidelines do not specify how much radiation patients may receive from medical procedures.
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Why do oncologists push chemo?

An oncologist may recommend chemotherapy before and/or after another treatment. For example, in a patient with breast cancer, chemotherapy may be used before surgery, to try to shrink the tumor. The same patient may benefit from chemotherapy after surgery to try to destroy remaining cancer cells.
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Does radiotherapy hurt?

Does radiation therapy hurt? No, radiation therapy does not hurt while it is being given. But the side effects that people may get from radiation therapy can cause pain and discomfort. This booklet has a lot of information about ways that you and your doctor and nurse can help manage side effects.
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How do you feel after radiation treatment?

The most common early side effects are fatigue (feeling tired) and skin changes. Other early side effects usually are related to the area being treated, such as hair loss and mouth problems when radiation treatment is given to this area. Late side effects can take months or even years to develop.
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