Why does a patient on radiotherapy feel ill?

Sometimes radiotherapy to the chest can cause you to feel and be sick (nausea and vomiting). This is because the treatment area might include part of the stomach. And radiotherapy to the stomach can cause nausea and vomiting. This might last for a few weeks after the treatment has finished.

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Why does radiation make you feel bad?

Most people start to feel tired after a few weeks of radiation therapy. This happens because radiation treatments destroy some healthy cells as well as the cancer cells. Fatigue usually gets worse as treatment goes on. Stress from being sick and daily trips for treatment can make fatigue worse.

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What are the three main adverse effects of radiotherapy?

Damage to healthy cells can cause side effects. Many people who get radiation therapy have fatigue.
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Treatment areas and possible side effects
  • Fatigue.
  • Hair loss.
  • Memory or concentration problems.
  • Nausea and vomiting.
  • Skin changes.
  • Headache.
  • Blurry vision.

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What are the 2 most common side effects of radiation?

Common Side Effects from Radiation Therapy
  • Hair loss.
  • Appetite changes.
  • Mouth and throat changes.
  • Trouble swallowing.
  • Swelling.
  • Coughing.
  • Diarrhea.
  • Nausea and vomiting.

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How long after radiotherapy do you feel unwell?

The side effects of radiotherapy usually peak up to two weeks after treatment has finished. The effects of radiotherapy continue developing, and it may take a further couple of weeks to several months for you to feel normal, depending on the area of the body that has been treated.

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Radiation Treatment: Managing Your Side Effects

42 related questions found

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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How long does radiotherapy fatigue last?

People having radiotherapy for brain tumours often feel tired. This can be worse if you're also taking steroids. The tiredness often reaches its maximum 1 to 2 weeks after the end of treatment. A small number of people are asleep for a lot of the day after a long course of radiotherapy to the brain.

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How many sessions of radiotherapy is normal?

Radiotherapy is usually given as a number of individual treatments delivering a small dose of radiation daily over several weeks. Most people have 5 treatments a week (one treatment a day from Monday to Friday), with a break at the weekend.

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When are radiation side effects the worst?

Often the side effects are worse at the end of treatment, or even a week or two afterwards, because it takes time for the healthy cells to recover from radiation. Most side effects are temporary and go away in time, usually within a few weeks of treatment finishing.

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What not to do during radiation treatment?

Don't wear tight clothing over the treatment area. It's important not to rub, scrub or scratch any sensitive spots. Also avoid putting anything that is very hot or very cold—such as heating pads or ice packs—on your treated skin.

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How much weight do you lose during radiation treatment?

Weight loss during radiotherapy and one month after treatment. During radiotherapy, 46 (65.7%) patients lost weight, with a mean weight loss of (4.73 ± 3.91) kg, which corresponded to a (6.55 ± 4.84)% net reduction from their baseline weights.

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What does fatigue from radiation therapy 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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Which cancers are most likely to recur?

Breast cancer: Women with breast cancer have an overall 30% chance of recurrence. Many cases happen within five years of completing the initial treatment. Cervical cancer: Of those with invasive cervical cancer, an estimated 35% will have a recurrence.

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What foods should be avoided during radiation treatment?

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 is a bad reaction to radiation treatment?

Some people who receive radiation therapy experience dryness, itching, blistering, or peeling on the skin in the area being treated. Skin changes from radiation therapy usually go away a few weeks after treatment ends. If skin damage becomes a serious problem, your doctor may change your treatment plan.

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Are you toxic after radiation?

Some people with cancer who receive radiation therapy worry that their bodies will become “radioactive” after they receive radiation treatment. Their concern is that close physical contact with others could expose them to radiation. “The general answer to this concern is that physical contact is fine,” Snyder says.

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Is 5 weeks of radiotherapy a lot?

Typically, people have treatment sessions 5 times per week, Monday through Friday. This schedule usually continues for 3 to 9 weeks, depending on your personal treatment plan. This type of radiation therapy only targets the tumor. But it will affect some healthy tissue surrounding the tumor.

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Is 4 weeks of radiotherapy a lot?

Radiotherapy with the aim of curing cancer usually lasts between 1 to 7 weeks. For radiotherapy to relieve symptoms, you might have anything between a single treatment to 2 weeks of treatment. It might be longer than this. Your doctor will tell you how many treatments you'll have.

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Is 6 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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Do you sleep a lot after radiotherapy?

Most people getting radiation therapy feel fatigued. It does not mean that your cancer is getting worse. It does not mean that the treatment is not working. In fact, it is normal to feel very tired during this time.

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Does radiotherapy make you sleep a lot?

Radiotherapy can cause tiredness because the body is using up your energy reserves to repair healthy cells damaged by the radiotherapy. If you are taking steroids, you might also find that you feel extremely tired when you stop taking them. Travelling to the hospital each day for treatment can also make you tired.

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Why am I so tired months after radiation?

You may experience fatigue if cancer treatment damages healthy cells in addition to the cancer cells. Or fatigue might happen as your body works to repair damage caused by treatment. Some treatment side effects — such as anemia, nausea, vomiting, pain, insomnia and changes in mood — also may cause fatigue. Anemia.

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What fruit is good for radiation treatment?

The following foods are good sources of compounds that have been shown to increase the anti-cancer effects of radiation treatment and/or protect normal tissues, but not tumors, from radiation: Apples. Apricots.
...
  • Cucumbers.
  • Currants, black.
  • Flaxseed.
  • Ginger.
  • Grapes and grape juice, red.
  • Green tea.
  • Greens.
  • Honey, min. processed.

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What is the most common late complication of radiation?

Skin changes. The most common long term side effect is a change to the skin where you have had radiotherapy treatment. The skin may look permanently sunburnt or develop a network of tiny blood vessels near the surface.

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