What are the pros and cons of radiation therapy?
Radiation therapy can be given in 3 ways: External radiation (or external beam radiation): uses a machine that directs high-energy rays from outside the body into... Internal radiation: Internal radiation is also called brachytherapy. A radioactive source is …
What is radiation therapy and how does it work?
Radiation therapy is used to treat many conditions, including: Acoustic neuroma A non-cancerous tumor that may develop from an overproduction of Schwann cells that press on the hearing and balance nerves in the inner ear. Arteriovenous malformations
What is radiation therapy and how is it used to treat cancer?
Radiation therapy is the use of high-energy radiation to treat cancer. A radiation oncologist may use radiation to cure cancer or to relieve a cancer patient's pain or alleviate other symptoms due to the cancer. Radiation therapy works because the radiation destroys the cancer cells' ability to reproduce, and the body naturally gets rid of these cells.
What are the three things radiation is used for?
Mar 06, 2021 · Radiation therapy is an effective way to reduce your risk of breast cancer recurring after surgery. In addition, it is commonly used to ease the symptoms caused by cancer that has spread to other parts of the body (metastatic breast cancer). Products & Services Mayo Clinic Cancer Center Show more products from Mayo Clinic Why it's done

What illnesses are treated with radiation?
Radiation therapy is used to treat many conditions, including:Acoustic neuroma. A non-cancerous tumor that may develop from an overproduction of Schwann cells that press on the hearing and balance nerves in the inner ear.Arteriovenous malformations. ... Bone cancer. ... Brain tumor. ... Breast cancer. ... Cancer. ... Chondrosarcoma. ... Chordoma.More items...
Is radiation used for anything other than cancer?
Doctors use radiation therapy to treat just about every type of cancer. Radiation therapy is also useful in treating some noncancerous (benign) tumors.Jul 1, 2020
At what stage of cancer is radiation used?
Sometimes, doctors recommend radiation therapy as the first cancer treatment. Other times, people receive radiation therapy after surgery or therapies using medication, like chemotherapy. This is called adjuvant therapy. It targets cancer cells remaining after the initial treatment.
What are the 3 types of radiation therapy?
Three common types of internal radiation therapy include:Brachytherapy involves radioactive material that is implanted in the body. ... Intraoperative radiation therapy (IORT) is used to treat an exposed tumor during cancer surgery. ... Stereotactic radiosurgery (SRS) is not actually surgery.Jun 10, 2021
Which is worse chemo or radiation?
A systemic treatment like chemotherapy or liquid radiation may have more off-target side effects than a local treatment. But local treatments that are administered only to the cancer site, like external beam radiation or solid internal radiation treatment, may have more extreme side effects in that area of the body.Sep 25, 2021
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
Is radiation therapy painful?
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.
Does radiation help Stage 4 cancer?
Summary: The first report from a phase II, multi-center clinical trial indicates that a newer, more aggressive form of radiation therapy -- stereotactic radiation -- can extend long-term survival for some patients with stage-IV cancers while maintaining their quality of life.Jan 31, 2019
What does radiation feel like?
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
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.Oct 25, 2016
How long does it take to recover from radiation?
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.
How long does radiation therapy take?
How long does radiation therapy take? Each radiation therapy treatment takes about 10 minutes. Radiation therapy to try and cure cancer is usually delivered daily, Monday through Friday, for about five to eight weeks. Weekend breaks allow normal cells to recover.
What Is Radiation Therapy?
Radiation therapy uses high-energy particles or waves, such as x-rays, gamma rays, electron beams, or protons, to destroy or damage cancer cells.Yo...
Who Gets Radiation Therapy?
More than half of people with cancer get radiation therapy. Sometimes, radiation therapy is the only cancer treatment needed.
What Are The Goals of Radiation Therapy?
Most types of radiation therapy don’t reach all parts of the body, which means they’re not helpful in treating cancer that has spread to many place...
How Is Radiation Therapy given?
Radiation therapy can be given in 3 ways: 1. External radiation (or external beam radiation): uses a machine that directs high-energy rays from out...
Who Gives Radiation Therapy Treatments?
During your radiation therapy, a team of highly trained medical professionals will care for you. Your team may include these people: 1. Radiation o...
Does Radiation Therapy Cause Cancer?
It has long been known that radiation therapy can slightly raise the risk of getting another cancer. It’s one of the possible side effects of treat...
Does Radiation Therapy Affect Pregnancy Or Fertility?
Women: It’s important not to become pregnant while getting radiation – it can harm the growing baby. If there’s a chance you might become pregnant,...
Questions to Ask About Radiation Therapy
Before treatment, you’ll be asked to sign a consent form saying that your doctor has explained how radiation therapy may help, the possible risks,...
Will I Be Radioactive During Or After External Radiation Treatment?
External radiation therapy affects cells in your body only for a moment. Because there’s no radiation source in your body, you are not radioactive...
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.
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 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 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.
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.
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 does radiation help cancer cells?
But cancer cells grow and divide faster than most normal cells. Radiation works by making small breaks in the DNA inside cells. These breaks keep cancer cells from growing and dividing and cause them to die.
How is radiation given?
Radiation therapy can be given in 3 ways: 1 External radiation (or external beam radiation): uses a machine that directs high-energy rays from outside the body into the tumor. It’s done during outpatient visits to a hospital or treatment center. It's usually given over many weeks and sometimes will be given twice a day for several weeks. A person receiving external radiation is not radioactive and does not have to follow special safety precautions at home. 2 Internal radiation: Internal radiation is also called brachytherapy. A radioactive source is put inside the body into or near the tumor. With some types of brachytherapy, radiation might be placed and left in the body to work. Sometimes it is placed in the body for a period of time and then removed. This is decided based on the type of cancer. Special safety precautions are needed for this type of radiation for a period of time. But it's important to know if the internal radiation is left in the body, after a while it eventually is no longer radioactive. 3 Systemic radiation: Radioactive drugs given by mouth or put into a vein are used to treat certain types of cancer. These drugs then travel throughout the body. You might have to follow special precautions at home for a period of time after these drugs are given.
What doctor is trained to treat cancer?
Radiation oncologist: This doctor is specially trained to treat cancer with radiation. This person oversees your radiation treatment plan. Radiation physicist: This is the person who makes sure the radiation equipment is working as it should and that it gives you the exact dose prescribed by your radiation oncologist.
What is the treatment for cancer that has returned?
To treat cancer that has returned (recurred) If a person's cancer has returned (recurred), radiation might be used to treat the cancer or to treat symptoms caused by advanced cancer. Whether radiation will be used after recurrence depends on many factors.
Why do people get radiation to their head?
This is done to help prevent cancer from spreading to the head even before it can.
How does cancer spread?
Cancer can spread from where it started to other body parts. Doctors often assume that a few cancer cells might already have spread even when they can’t be seen on imaging scans like CT scans or MRIs. In some cases, the area where the cancer most often spreads to may be treated with radiation to kill any cancer cells before they grow into tumors. For instance, people with certain kinds of lung cancer may get radiation to the head, even when there is no cancer known to be there, because their type of lung cancer often spreads to the brain. This is done to help prevent cancer from spreading to the head even before it can. Sometimes, radiation to prevent future cancer can be given at the same time that radiation is given to treat existing cancer, especially if the area the cancer might spread to is close to the tumor itself.
How many people with cancer get radiation?
More than half of people with cancer get radiation therapy. Sometimes, radiation therapy is the only cancer treatment needed and sometimes it's used with other types of treatment. The decision to use radiation therapy depends on the type and stage of cancer, and other health problems a patient might have.
What is the name of the cancer that affects the femur, arm, pelvis, and spine?
Chondrosarcoma. A malignant type of bone cancer that primarily affects the cartilage cells of the femur (thighbone), arm, pelvis, knee, and spine. Although less frequent, other areas (such as the ribs) may be affected.
What is the name of the cancer that develops in the outer covering of the bone?
Osteosarcoma. A type of bone cancer, most often occuring in children, adolescents, and young adults, that develops in the osteoblast cells that form the outer covering of bone.
Where is Ewing's sarcoma found?
Ewing's sarcoma. A type of cancer that occurs primarily in the bone or soft tissue, most often found in the extremities and can involve muscle and the soft tissues around the tumor site as well as spread to other areas of the body.
What is radiation therapy?
Radiation therapy is the use of high-energy radiation to damage cancer cells' DNA and destroy their ability to divide and grow. It may be delivered using machines called linear accelerators or via radioactive sources placed inside the patient on a temporary or permanent basis. Radiation therapy may be used to cure cancer, ...
How does radiation help a tumor?
Radiation can also be used to cut off blood flow to a tumor in vascular organs like the liver. For instance, radioembolization uses microspheres filled with radioactive isotopes to block a tumor's blood supply and starve it. top of page. This page was reviewed on April, 12, 2019.
What is SBRT in medical terms?
Other parts of the body can be treated with stereotactic body radiation therapy (SBRT). Emerging areas for using SBRT include lung, liver and bone. Image-guided radiation therapy ( IGRT) is often used in conjunction with IMRT to ensure the radiation is delivered to the planned area. IGRT involves performing a CT scan at the time ...
What is the name of the radiation therapy that uses cyclotrons?
Proton therapy is another form of external beam radiation therapy that uses cyclotrons or synchrotrons to produce charged atoms that destroy tumors. Radiation therapy given by radioactive sources that are put inside the patient is called brachytherapy. The radioactive sources are sealed in needles, seeds, wires, or catheters, ...
What is gamma knife?
The Gamma Knife ® is a treatment option that uses radioactive cobalt sources to focus multiple beams of radiation on a small area. Linear accelerators can also be used to deliver stereotactic radiation therapy to the brain. Other parts of the body can be treated with stereotactic body radiation therapy (SBRT).
What is IGRT in radiation?
IGRT involves performing a CT scan at the time of radiation treatment to ensure the target is aligned in the correct location . IGRT can allow for adjustments during treatment in areas of the body that are prone to movement, such as the lungs, and tumors located close to critical organs and tissues.
What are the professionals involved in radiation therapy?
Professionals involved in radiation therapy treatment include: Radiation oncologists. Radiation therapists. Radiation oncology nurses. Medical radiation physicists. Dosimetrists. Social workers. Dietitians. Click on any of the professionals listed above to learn more about that specialty.
Why do we need radiation therapy?
Why it's done. Radiation therapy kills cancer cells. It's often used after surgery to reduce the risk that the cancer will come back. It can also be used to provide relief from pain and other symptoms of advanced breast cancer.
What is radiation therapy for breast cancer?
Radiation therapy for breast cancer uses high-energy X-rays, protons or other particles to kill cancer cells. Rapidly growing cells, such as cancer cells, are more susceptible to the effects of radiation therapy than are normal cells. The X-rays or particles are painless and invisible.
What is the most common type of radiation after a lumpectomy?
One of the most common types of radiation therapy after a lumpectomy is external beam radiation of the whole breast (whole-breast irradiation). Radiation to part of the breast. Radiation therapy to part of the breast (partial-breast irradiation) may be an option for some early-stage breast cancers.
What is radiation after a lumpectomy?
Adding radiation after a lumpectomy reduces the risk that cancer will return in the affected breast. Lumpectomy combined with radiation therapy is often referred to as breast conservation therapy. This type of treatment is as effective as having all the breast tissue removed (mastectomy).
What is the best treatment for breast cancer after lumpectomy?
Radiation after lumpectomy. If you're having an operation to remove the breast cancer and leave the remaining breast tissue intact (lumpectomy or breast-conserving surgery), your doctor may recommend radiation after your procedure to kill any cancer cells that might remain.
What is the procedure to remove breast cancer?
Internal radiation (brachytherapy). After you have surgery to remove the cancer, your doctor temporarily places a radiation-delivery device in your breast in the area where the cancer once was. A radioactive source is placed into the device for short periods of time over the course of your treatment.
How to reduce the risk of breast cancer after surgery?
Radiation therapy is an effective way to reduce your risk of breast cancer recurring after surgery. In addition, it is commonly used to ease the symptoms caused by cancer that has spread to other parts of the body (metastatic breast cancer).
What are the different types of radiation therapy?
Three common types of internal radiation therapy include: 1 Brachytherapy involves radioactive material that is implanted in the body. Dozens of tiny “seeds” containing radioactive iodine are placed at the tumor site with a special needle or catheter. This is done as an outpatient procedure. Brachytherapy is used for treatment of prostate, cervical, endometrial, vaginal and breast cancers. 2 Intraoperative radiation therapy (IORT) is used to treat an exposed tumor during cancer surgery. IORT delivers a high dose of radiation to a surgically exposed treatment area. Surrounding healthy organs and tissues are protected by lead shields. This type of radiation can be used for certain gastrointestinal cancers and other cancers that are challenging to remove during surgery. 3 Stereotactic radiosurgery (SRS) is not actually surgery. Instead, it uses dozens of tiny radiation beams to treat tumors in the head and neck with a single radiation dose. MD Anderson uses the Gamma Knife® SRS system. Gamma Knife is used to treat cancer that has spread to the brain or head or neck area, as well as tumors in the base of the skull, malignant gliomas, acoustic neuromas, pituitary tumors and meningiomas.
How is radiation delivered to cancer?
External beam radiation therapies are delivered through a specialized machine directly to the cancer site. These include the following types of radiation therapy: Proton therapy uses a beam of protons to deliver radiation directly to the tumor. A proton beam conforms to the shape and depth of a tumor while sparing healthy tissues and organs.
What is IGRT in cancer?
Several cancer types have seen improved outcomes from this including brain cancer, head and neck cancer, liver cancer, lung cancer and prostate cancer. Image guided radiation therapy (IGRT) tracks the tumor or implanted markers during radiation. This type of radiation treats tumors in areas of the body that move.
What is brachytherapy used for?
Brachytherapy is used for treatment of prostate, cervical, endometrial, vaginal and breast cancers. Intraoperative radiation therapy (IORT) is used to treat an exposed tumor during cancer surgery. IORT delivers a high dose of radiation to a surgically exposed treatment area. Surrounding healthy organs and tissues are protected by lead shields.
What is a VMAT machine?
As the treatment machine rotates, radiation is delivered at every angle. This focuses the highest dose of radiation on the tumor, while reducing radiation to healthy organs. VMAT can be used to treat several types of solid tumors, including prostate cancer, liver cancer and pancreatic cancer.
What causes cancer cells to stop multiplying?
Radiation damage s the cancer cells causing them to stop multiplying. We asked radiation oncologist Valerie Reed, M.D ., to explain some of the most common types of radiation therapy and how they are used. Here’s what she shared. Some types of radiation therapies are used to treat cancers near sensitive organs.
What is internal radiation?
Internal radiation therapies use a radioactive source in or near the cancer site. Three common types of internal radiation therapy include: Brachytherapy involves radioactive material that is implanted in the body. Dozens of tiny “seeds” containing radioactive iodine are placed at the tumor site with a special needle or catheter.
How to do radiation therapy?
If you decide to have external beam radiation therapy, you will be scheduled for a treatment planning session called a simulation. At this time: 1 A radiation oncologist (a doctor who specializes in using radiation to treat cancer) and radiation therapist will figure out your treatment area. You may also hear the treatment area referred to as the treatment port or treatment field. These terms refer to the places in your body that will get radiation. You will be asked to lie very still while x-rays or scans are taken. 2 The radiation therapist will tattoo or draw small dots of colored ink on your skin to mark the treatment area. These dots will be needed throughout your course of radiation therapy. The radiation therapist will use them to make sure you are in exactly the same position for every treatment. The dots are about the size of a freckle. If the dots are tattooed, they will remain on your skin for the rest of your life. Ink markings will fade over time. Be careful not to remove them and tell the radiation therapist if they fade or lose color. 3 A body mold may be made of the part of the body that is being treated. This is a plastic or plaster form that keeps you from moving during treatment. It also helps make sure that you are in exactly the same position for each treatment
What type of radiation is used in x-rays?
Most radiation therapy machines use photon beams. Photons are also used in x-rays, but x-rays use lower doses. Photon beams can reach tumors deep in the body. As they travel through the body, photon beams scatter little bits of radiation along their path.
What is stereotactic radiation?
Stereotactic body radiation therapy is similar to stereotactic radiosurgery, but it is used for small, isolated tumors outside the brain and spinal cord, often in the liver or lung. It may be an option when you cannot have surgery due to age, health problems, or the location of the tumor.
How do proton beams work?
Protons are particles with a positive charge. Like photon beams, proton beams can also reach tumors deep in the body. However, proton beams do not scatter radiation on their path through the body and they stop once they reach the tumor. Doctors think that proton beams might reduce the amount of normal tissue that is exposed to radiation. Clinical trials are underway to compare radiation therapy using proton beams with that using photons beams. Some cancer centers are using proton beams in radiation therapy, but the high cost and size of the machines are limiting their use.
Why do people have side effects from radiation?
They usually happen because radiation therapy can injure healthy cells that are near the cancer cells it is destroying. Side effects depend on the part of your body being treated. It's important to keep in mind that they differ in degree from person to person.
What is the name of the doctor who treats cancer?
A radiation oncologist (a doctor who specializes in using radiation to treat cancer) and radiation therapist will figure out your treatment area. You may also hear the treatment area referred to as the treatment port or treatment field. These terms refer to the places in your body that will get radiation.
What is the span of time from your first radiation treatment to the last?
The span of time from your first radiation treatment to the last is called a course of treatment . Researchers are looking at different ways to adjust the radiation dose or schedule in order to reach the total dose of radiation more quickly or to limit damage to healthy cells.
What is radiation therapy?
Radiation therapy is a cancer treatment that uses concentrated radiation beams to kill cancer cells. The most common type of radiation therapy is external beam radiation. This type involves a machine that directs high-energy beams of radiation at cancer cells. The machine allows radiation to be targeted at specific sites, ...
Why do doctors use radiation?
The machine allows radiation to be targeted at specific sites, which is why doctors use external beam radiation for nearly all types of cancer. According to the National Cancer Institute (NCI), about half of all people with cancer will receive radiation therapy.
What is the first step in radiation treatment?
The first step in radiation treatment is determining that it’s the right form of treatment for you. Your doctor will also determine dosage amounts and the frequency of radiation best suited for your cancer type and stage. Sometimes your doctor may decide that radiation therapy is best suited for use at a later stage, ...
How long does radiation therapy take?
Radiation therapy typically takes treatment sessions five days a week for 1 to 10 weeks. The total number of treatments depends on the size and type of cancer. Each session usually takes about 10 to 30 minutes. Often, the individual is given each weekend off from therapy, which helps with the restoration of normal cells.
What is protective covering?
Protective covering or shields may also be positioned on or around you to protect other body parts from unnecessary radiation. Radiation therapy involves the use of a linear accelerator machine, which directs radiation at the appropriate spot.
How long does it take for hair loss to go away after radiation?
Skin changes can include: Other side effects of radiation depend on the area being treated, and can include: According to the NCI, the majority of these side effects go away within two months after treatment is complete.
How long does it take for side effects from a syringe to go away?
vomiting. According to the NCI, the majority of these side effects go away within two months after treatment is complete. In rare cases, side effects can linger or even appear six or more months after treatment has finished.
What kind of radiation therapy is used for cancer?
The kind of radiation therapy you get depends on things like: The two main types of radiation therapy for cancer are: External beam radiation therapy . A large machine aims radiation beams from outside your body to a cancer tumor from many angles. It can treat a variety of cancers.
How long does radiation treatment take?
A visit usually lasts 30 minutes to an hour, most of which is spent getting you in the correct position. The treatment itself usually takes 5 minutes or less.
How to treat cancer before surgery?
The aim is to treat your cancer by slowing or stopping tumor growth. Your doctor may sometimes suggest you get radiation therapy to shrink a tumor before you get surgery. Or they may recommend it after surgery to keep a tumor from coming back. If cancer cells have spread to other parts of your body, radiation therapy can kill them ...
What is external beam radiation therapy?
External beam radiation therapy. A large machine aims radiation beams from outside your body to a cancer tumor from many angles. It can treat a variety of cancers. The machine can be quite noisy, but it won't touch you. It sends radiation to the specific area where there's cancer.
How does brachytherapy work?
They put it inside you using a small tube called a catheter or a device known as an applicator. Brachytherapy usually treats head, neck, breast, cervix, endometrial, prostate, and eye cancers. If your doctor uses a low dose of radiation in brachytherapy, they'll remove the implant after several days. If they use a higher dose, they usually take it ...
What is the treatment for cancer?
Radioembolization. Cancer Caused by Radiation Therapy. If you've been diagnosed with cancer, your doctor may suggest you get radiation therapy. It's a common treatment that shrinks tumors and kills cancer cells -- and might be the only one you need to tackle your disease.
How long does it take for radiation to go away?
If they use a higher dose, they usually take it out after 10 to 20 minutes, and you'll get two doses a day for around 2 to 5 weeks. Depending on the type and location of your cancer and the other treatments you've had, your doctor may also place an implant in your body permanently and the radiation will weaken with time.

Overview
Treatment for cancer involving radioactive energy to destroy the cancer cells and their division.
Treatment for: Cancer
Type of procedure: Noninvasive
Recovery time: Can take several days
Duration: Few minutes
Hospital stay: Not typically needed
Why It's Done
Risks
How You Prepare
What You Can Expect
- 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.
Results
- 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…
Clinical Trials
- 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…