Treatment FAQ

how does radiation treatment affect the body

by Foster Hegmann Published 2 years ago Updated 2 years ago
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Radiation therapy damages cells by destroying the genetic material that controls how cells grow and divide. While both healthy and cancerous cells are damaged by radiation therapy, the goal of radiation therapy is to destroy as few normal, healthy cells as possible.Jul 1, 2020

What are the long - term effects of radiation treatment?

Your skin in the radiation treatment area might look red, irritated, swollen, blistered, sunburned, or tanned. After a few weeks, your skin might become dry, flaky, or itchy, or it may peel. This is sometimes called radiation dermatitis. It’s important to …

What are the negative effects of radiation therapy?

The following are some of the general side-effects of radiation treatment: Tiredness and fatigue - It is one of the common side-effects of radiation therapy. It is seen after a few weeks of treatment especially in a patient undergoing treatment over large areas of the body and it resolves once the treatment is finished. Skin Problems - External Radiation therapy may cause skin …

What to expect when having radiation therapy?

How Radiation Affects Your Body Radiation can damage the DNA in our cells. High doses of radiation can cause Acute Radiation Syndrome (ARS) or Cutaneous Radiation Injuries (CRI). High doses of radiation could also lead to cancer later in life. Learn more about health effects of radiation exposure Sign up here for the Radiation and Health Newsletter

What to expect during and after radiation treatments?

Radiation not only kills or slows the growth of cancer cells, it can also affect nearby healthy cells. The healthy cells almost always recover after treatment is over. But sometimes people may have side effects that are severe or do not get better. Other side effects may show up months or years after radiation therapy is over.

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What are the most common side effects of radiation therapy?

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.Dec 10, 2020

How long does radiation stay in your body after cancer treatment?

For most people, the cancer experience doesn't end on the last day of 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.

Does radiation weaken the body?

Radiation not only kills or slows the growth of cancer cells, it can also affect nearby healthy cells. Damage to healthy cells can cause side effects. Many people who get radiation therapy have fatigue. Fatigue is feeling exhausted and worn out.Jan 11, 2022

What does radiation treatment do to your body?

At high doses, radiation therapy kills cancer cells or slows their growth by damaging their DNA. Cancer cells whose DNA is damaged beyond repair stop dividing or die. When the damaged cells die, they are broken down and removed by the body. Radiation therapy does not kill cancer cells right away.Jan 8, 2019

Can radiation weaken the immune system?

Radiation therapy can potentially affect your immune system, especially if a significant amount of bone marrow is being irradiated because of its role in creating white blood cells. However, this doesn't typically suppress the immune system enough to make you more susceptible to infections.Jan 22, 2020

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.Jul 6, 2020

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.

What are 5 harmful effects of radiation?

Radiation Effects on HumansDose (rem)Effects5-20Possible late effects; possible chromosomal damage.20-100Temporary reduction in white blood cells.100-200Mild radiation sickness within a few hours: vomiting, diarrhea, fatigue; reduction in resistance to infection.4 more rows

Is radiation worse than chemotherapy?

Since radiation therapy is focused on one area of your body, you may experience fewer side effects than with chemotherapy. However, it may still affect healthy cells in your body.Mar 27, 2020

What are the disadvantages of radiation therapy?

The disadvantages of radiation therapy include:damage to surrounding tissues (e.g. lung, heart), depending on how close the area of interest is located to the tumor.inability to kill tumor cells that cannot be seen on imaging scans and are therefore not always included on the 3D models (e.g. in near-by lymph nodes.More items...

What can you not do 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.Nov 8, 2021

How do you know if radiation therapy 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).Apr 7, 2022

If You’Re Getting Radiation Therapy to The Brain

People with brain tumors often get stereotactic radiosurgery (radiation given in one large dose) if the cancer is in only one or a few sites in the...

If You’Re Getting Radiation Therapy to The Head Or Neck

People who get radiation to the head and neck might have side effects such as: 1. Soreness (or even open sores) in the mouth or throat 2. Dry mouth...

If You’Re Getting Radiation Therapy to The Breast

If you have radiation to the breast, it can affect your heart or lungs as well causing other side effects.

If You’Re Getting Radiation Therapy to The Chest

Radiation treatment to the chest may cause side effects such as: 1. Sore throat 2. Swallowing problems 3. Loss of appetite 4. Cough 5. Shortness of...

If You’Re Getting Radiation Therapy to The Abdomen (Belly)

If you are getting radiation to your stomach or some part of the abdomen (belly), you may have side effects such as: 1. Nausea 2. Vomiting 3. Belly...

If You’Re Having Radiation Therapy to The Pelvis

Radiation therapy to the pelvis (for example, as treatment for bladder, ovarian, or prostate cancer) can cause side effects such as: 1. Bladder pro...

How long does it take for a person to recover from radiation?

Skin changes. Urinary and bladder changes. Healthy cells that are damaged during radiation treatment usually recover within a few months after treatment is over. But sometimes people may have side effects that do not improve. Other side effects may show up months or years after radiation therapy is over.

Does radiation therapy cause cancer?

Radiation Therapy Side Effects. Radiation not only kills or slows the growth of cancer cells, it can also affect nearby healthy cells. Damage to healthy cells can cause side effects. Many people who get radiation therapy have fatigue. Fatigue is feeling exhausted and worn out.

What are the dangers of radiation?

It’s All About the Dose! 1 As with other types of toxins, “the dose makes the poison”. 2 We receive low doses of radiation from our natural environment every day. 3 We know that radiation at high doses can cause cancer, could harm fetuses, and can even lead to death.

Can radiation damage DNA?

Radiation can damage the DNA in our cells. High doses of radiation can cause Acute Radiation Syndrome (ARS) or Cutaneous Radiation Injuries (CRI). High doses of radiation could also lead to cancer later in life. Learn more about health effects of radiation exposure. Page last reviewed: December 7, 2015.

Is radiation harmful to children?

A dose to a part of the body is less harmful than a dose to the whole body. Children and young adults are more sensitive to the effects of radiation. Learn more about different factors that affect dose.

Can radiation cause cancer?

We receive low doses of radiation from our natural environment every day. We know that radiation at high doses can cause cancer, could harm fetuses, and can even lead to death. Learn more about dose and health effects of radiation.

How does radiation damage cells?

Radiation therapy damages cells by destroying the genetic material that controls how cells grow and divide. While both healthy and cancerous cells are damaged by radiation therapy, the goal of radiation therapy is to destroy as few normal, healthy cells as possible.

Why do people get radiation therapy?

Why it's done. More than half of all people with cancer receive radiation therapy as part of their cancer treatment. Doctors use radiation therapy to treat just about every type of cancer. Radiation therapy is also useful in treating some noncancerous (benign) tumors.

What is the treatment for cancer?

Radiation therapy. External beam radiation uses high-powered beams of energy to kill cancer cells. Beams of radiation are precisely aimed at the cancer using a machine that moves around your body. Radiation therapy is a type of cancer treatment that uses beams of intense energy to kill cancer cells. Radiation therapy most often uses X-rays, but ...

What type of radiation is used in X-rays?

The term "radiation therapy" most often refers to external beam radiation therapy. During this type of radiation, the high-energy beams come from a machine outside of your body that aims the beams at a precise point on your body.

How long does radiation treatment last?

Expect each treatment session to last approximately 10 to 30 minutes. In some cases, a single treatment may be used to help relieve pain or other symptoms associated with more-advanced cancers. During a treatment session, you'll lie down in the position determined during your radiation simulation session.

What is the purpose of neoadjuvant therapy?

Before surgery, to shrink a cancerous tumor (neoadjuvant therapy) After surgery, to stop the growth of any remaining cancer cells (adjuvant therapy) In combination with other treatments, such as chemotherapy, to destroy cancer cells. In advanced cancer to alleviate symptoms caused by the cancer.

How long does it take for cancer to respond to radiation?

In some cases, your cancer may respond to treatment right away. In other cases, it may take weeks or months for your cancer to respond.

How to take care of skin during radiation?

Î Skin care. Take extra good care of your skin during radiation therapy. Be gentle and do not rub, scrub, or scratch in the treatment area. Use creams that your doctor or nurse suggests.

How to protect your scalp from sunburn?

Your scalp may feel tender after hair loss. Protect it from very cold air and sunburn by covering your head with a hat, turban, or scarf when you are outside.

Is it important to be honest with your spouse while on radiation?

For both men and women, it is important to be open and honest with your spouse or partner about your feelings and concerns, and how you prefer to be intimate while you are having radiation therapy.

Can radiation therapy cause side effects?

They may occur with radiation therapy because the high doses of radiation that are used to kill cancer cells can also damage healthy cells in the treatment area. Side effects are different for each person. Some people have many side effects. Others have hardly any. Side effects may be more severe if you also receive chemotherapy before, during, or after your radiation therapy.

How does radiation affect cancer cells?

Radiation creates small breaks within the DNA of cancer cells, preventing the cells from growing and dividing, and often causing them to die. Radiation therapy uses high-enegery waves or particles to destroy or damage tumor cells. Because cancer cells divide rapidly, they’re more likely to succumb to DNA damage, ...

What is radiation therapy?

Along with surgery and chemotherapy, radiation therapy has long been a mainstay of cancer treatment. It uses high-energy waves or particles such as x-rays, gamma rays, electrons, or protons to destroy or damage tumor cells.

How is cancer treated?

Some cancers are treated with internal radiation therapy, in which radioactive material, sealed in a container, is implanted next to or inside a tumor. High doses of internal radiation therapy are given by placing a powerful source of radioactivity in the body for a few minutes at a time.

Can you stay in the hospital after a temporary implant?

Patients who receive temporary implants often stay in the hospital while the implant is in place and may have limitations on visitors. Their bodily fluids are not radioactive. Once the implant is removed, their body is radiation-free.

Does radiation damage DNA?

Because cancer cells divide rapidly, they’re more likely to succumb to DNA damage, but radiation can damage DNA in normal cells as well. The damage that radiation therapy does to normal cells may lead to a variety of side effects, which generally improve over time.

What is radiation therapy?

External beam radiation therapy is the most common type of treatment and it delivers radiation from a source outside the body. Getting a recommendation for radiation therapy as part of cancer treatment comes with a learning curve – and a lot of questions. More than half of all patients with cancer receive radiation therapy at some point in their ...

Do cancer patients need radiation?

More than half of all patients with cancer receive radiation therapy at some point in their care, and patients and their families want to know how radiation works and how it might affect their lives during and after treatment. Still, we know some patients feel nervous asking questions about their cancer therapy. In a word: Don’t.

What is the radiation oncology team at UT Southwestern?

Advances in stereotactic radiation therapy and technology are helping the Radiation Oncology team at UT Southwestern's Harold C. Simmons Cancer Center deliver more effective and less invasive treatments to patients. Nina Sanford, M.D., provides a behind-the-scenes look at the life-changing options.

Does radiation kill cancer cells?

In most cases, no. Radiation therapy generates molecules called free radicals that kill cancer cells, and oxygen is required in this process. Because many vitamins and supplements include antioxidants, which limit the amount of oxygen in tissue and organs, they could potentially decrease radiation’s effectiveness.

What is external beam radiation therapy?

External beam radiation therapy is the most common type of treatment, and true to its name, it delivers radiation from a source outside the body. With this approach, you don’t need to worry about contact with family members or other people you encounter.

How long does radiation stay in the body?

These sources remain active in the body for many weeks (and longer in some cases), but the radiation emitted is so low that there is a negligible risk to others. However, to be extra cautious, patients are advised to avoid close contact with children and pregnant women for up to two months. 2.

Can radiation therapy be harmful?

Some patients worry that undergoing radiation therapy can be harmful to others because they are radioactive. For example, patients sometimes think they can't cuddle with their partner or hold a grandchild on their lap until after treatment. However, most patients don’t need to worry about being radioactive.

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Overview

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Radiation therapy is a type of cancer treatment that uses beams of intense energy to kill cancer cells. Radiation therapy most often uses X-rays, but protons or other types of energy also can be used. The term "radiation therapy" most often refers to external beam radiation therapy. During this type of radiation, the high-energy bea…
See more on mayoclinic.org

Why It's Done

  • More than half of all people with cancer receive radiation therapy as part of their cancer treatment. Doctors use radiation therapy to treat just about every type of cancer. Radiation therapy is also useful in treating some noncancerous (benign) tumors.
See more on mayoclinic.org

Risks

  • Radiation therapy side effects depend on which part of your body is being exposed to radiation and how much radiation is used. You may experience no side effects, or you may experience several. Most side effects are temporary, can be controlled and generally disappear over time once treatment has ended. Some side effects may develop later. For example, in rare circumsta…
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How You Prepare

  • Before you undergo external beam radiation therapy, your health care team guides you through a planning process to ensure that radiation reaches the precise spot in your body where it's needed. Planning typically includes: 1. Radiation simulation.During simulation, your radiation therapy team works with you to find a comfortable position for you during treatment. It's imperative that you li…
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What You Can Expect

  • External beam radiation therapy is usually conducted using a linear accelerator — a machine that directs high-energy beams of radiation into your body. As you lie on a table, the linear accelerator moves around you to deliver radiation from several angles. The linear accelerator can be adjusted for your particular situation so that it delivers the precise dose of radiation your doctor has order…
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Results

  • If you're receiving radiation to a tumor, your doctor may have you undergo periodic scans after your treatment to see how your cancer has responded to radiation therapy. In some cases, your cancer may respond to treatment right away. In other cases, it may take weeks or months for your cancer to respond. Some people aren't helped by radiation therapy.
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Clinical Trials

  • Explore Mayo Clinic studiesof tests and procedures to help prevent, detect, treat or manage conditions.
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