
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 then 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.
How long does it take to recover from radiation treatment?
The general effects of radiation therapy like fatigue, nausea, and headaches resolve fairly quickly after treatment. Your body just needs time to process the radiation but can recover within a few weeks. Delayed side effects of radiation therapy, on the other hand, may require further treatment to alleviate.
What to expect when having radiation therapy?
What to Expect During Radiation Therapy Treatment
- Before Radiation Therapy. At Affiliated Oncologists, each treatment plan is created to meet the individual needs of the patient, but there are some steps that are taken for each patient.
- During Radiation Therapy. There are two main types of radiation therapy: external beam radiation and internal radiation therapy.
- After Radiation Therapy. ...
How radiation therapy may affect your daily routine?
The Most Common Types of Radiation Injuries
- Weak and Broken Bones. Radiation is so potent that it can weaken the bones and cause osteoporosis and osteonecrosis. ...
- Bowel and Bladder Dysfunction. Just like radiation harms cells in your bones, it also affects the cells in your bowel and bladder. ...
- Burns. ...
Can radiation cure or cause cancer?
Yes, certain radiation wavelengths, or ionizing radiation, possess enough energy to severely damage cells and cause cancer. These wavelengths include X-rays, gamma rays, alpha particles and better particles.

How long does a person go through radiation therapy?
Treatments are usually scheduled five days a week, Monday through Friday, and continue for one to 10 weeks. The number of radiation treatments you will need depends on the size, location and type of cancer you have, the intent of the treatment, your general health and other medical treatments you may be receiving.
What happens when you go through radiation therapy?
Some people who receive radiation therapy experience dryness, itching, blistering, or peeling. These side effects depend on which part of the body received radiation therapy and other factors. Skin changes from radiation therapy usually go away a few weeks after treatment ends.
At what stage of cancer is radiotherapy used?
Radiotherapy may be used in the early stages of cancer or after it has started to spread. It can be used to: try to cure the cancer completely (curative radiotherapy) make other treatments more effective – for example, it can be combined with chemotherapy or used before surgery (neo-adjuvant radiotherapy)
What is life like after radiation therapy?
They're usually gone within a few weeks after treatment ends. 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.
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.
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.
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.
Can cancer spread during radiotherapy?
There are preclinical and clinical reports showing that focal radiotherapy can both increase the development of distant metastasis, as well as that it can induce the regression of established metastases through the abscopal effect.
When should radiation therapy be given?
Radiation therapy may be given before, during, or after these other treatments to improve the chances that treatment will work. The timing of when radiation therapy is given depends on the type of cancer being treated and whether the goal of radiation therapy is to treat the cancer or ease symptoms.
How does radiation help cancer?
When radiation is combined with surgery, it can be given: 1 Before surgery, to shrink the size of the cancer so it can be removed by surgery and be less likely to return. 2 During surgery, so that it goes straight to the cancer without passing through the skin. Radiation therapy used this way is called intraoperative radiation. With this technique, doctors can more easily protect nearby normal tissues from radiation. 3 After surgery to kill any cancer cells that remain.
What is intraoperative radiation therapy?
During surgery, so that it goes straight to the cancer without passing through the skin. Radiation therapy used this way is called intraoperative radiation.
What is brachytherapy with liquid source?
Learn more about brachytherapy. Internal radiation therapy with a liquid source is called systemic therapy. Systemic means that the treatment travels in the blood to tissues throughout your body, seeking out and killing cancer cells.
What is the best radiation treatment for thyroid cancer?
A systemic radiation therapy called radioactive iodine, or I-131, is most often used to treat certain types of thyroid cancer.
What is the treatment for cancer that has spread to the bone called?
Pain from cancer that has spread to the bone can be treated with systemic radiation therapy drugs called radiopharmaceuticals.
Why do people with cancer need radiation?
Why People with Cancer Receive Radiation Therapy. Radiation therapy is used to treat cancer and ease cancer symptoms . When used to treat cancer, radiation therapy can cure cancer, prevent it from returning, or stop or slow its growth. When treatments are used to ease symptoms, they are known as palliative treatments.
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.
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.
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 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.
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 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.
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.
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 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 best treatment for cancer?
Radiation may be used by itself in these cases to make the cancer shrink or completely go away. In some cases, chemotherapy or other anti-cancer drugs may be given first. For other cancers, radiation may be used before surgery to shrink the tumor ...
What is systemic radiation?
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.
How does radiation affect the bladder?
Just like radiation harms cells in your bones, it also affects the cells in your bowel and bladder. You might experience blood in your urine, reduced bladder control, sexual dysfunction, and interruptions to your daily routine.
Can radiation cause burns?
The concentrated exposure of X-rays during radiation therapy often causes painful burns across the skin. As X-rays pass through the skin, they produce dangerous free radicals that damage DNA, injure skin tissue, and trigger inflammation. This side effect is so common that about 85% of radiation patients experience moderate to severe burns during and after treatment
Does radiation weaken bones?
Radiation is so potent that it can weaken the bones and cause osteoporosis and osteonecrosis. Since bones are living and growing organisms, radiation harms their active cells and stunts their strength. The ribs in your chest or bones in your leg may become far more vulnerable to fractures and breaks.
How long does radiation side effects last?
Remember that the type of radiation side effects you might have depends on the prescribed dose and schedule. Most side effects go away within a few months of ending treatment. Some side effects may continue after treatment ends because it takes time for the healthy cells to recover from radiation. Side effects might limit your ability ...
How long does it take for radiation to cause side effects?
Late side effects can take months or even years to develop. They can occur in any normal tissue in the body that has received radiation. The risk of late side effects depends on the area treated as well as the radiation dose that was used. Careful treatment planning can help avoid serious long-term side effects.
How long does it take for radiation to show up in the brain?
Radiation to the brain can also have side effects that show up later – usually from 6 months to many years after treatment ends. These delayed effects can include serious problems such as memory loss, stroke-like symptoms, and poor brain function.
What is the most common drug used for radiation therapy?
The one most commonly used today is amifostine. This drug may be used in people with head and neck cancer to reduce the mouth problems caused by radiation therapy. Not all doctors agree on how these drugs should be used in radiation therapy. These drugs have their own side effects, too, so be sure you understand what to look for.
What is the best treatment for radiation?
One way to reduce side effects is by using radioprotective drugs, but these are only used for certain types of radiation given to certain parts of the body. These drugs are given before radiation treatment to protect certain normal tissues in the treatment area. The one most commonly used today is amifostine. This drug may be used in people with head and neck cancer to reduce the mouth problems caused by radiation therapy.
What are the side effects of brachytherapy?
If your treatment includes brachytherapy (internal radiation implants), you might notice breast tenderness, tightness, redness, and bruising. You may also have some of the same side effects that happen with external radiation treatment.
How to take care of your mouth during radiation?
Here are some tips that may help you manage mouth problems: Avoid spicy and rough foods, such as raw vegetables, dry crackers, and nuts.
How long does a tumor treatment last?
Each treatment lasts a few mins, every days from 4 weeks to 8 weeks depending on the type of tumor, what stage and whether it combines with chemotherapy or surgery or not.
How does it depend on treatment?
The short answer: it depends. It depends on whether you are speaking of daily treatment "beam on" time or the entire treatment course of management. It also depends on whether you will be receiving treatment for palliative or curative intent, and whether treatment will be standard or a more sophisticated plan.
How long does a beam last?
The be am is only on for about 2-3 minutes. That would depend primarily on whether the treatment is curative or palliative. In the palliative setting, in general the treatment conventionally can be done over one fraction ( one treatment), 5 fractions or 10 fractions. Other considerations, will include the area treated, ...
What happens after radiation treatment?
What happens after treatment finishes? After radiation therapy has finished, your treatment team will give you general information about your recovery. They will tell you how to look after the treatment area and recommend ways to manage side effects. They will also suggest who to call if you have any concerns.
How long does it take for cancer to go away after radiation?
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 then keep dying for weeks or months after the end of treatment.

Overview
Why It's Done
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…
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…
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…
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 thera...
Clinical Trials
- Explore Mayo Clinic studiesof tests and procedures to help prevent, detect, treat or manage conditions.
Ct Simulation
Treatment Planning Process
Quality Assurance
Set-Up
Daily Treatments
On-Treatment Visit
End-Of-Treatment Visit
Follow-Up Care
- Follow-up appointments are often scheduled at 4 and 12 weeks after your radiation treatments are done. You may be asked to have a scan (CT, PET, or MRI) before this visit. Your provider will see how you are doing and give you information on continued follow-up care. It is important to go to your follow-up care appointments so that any radiation-rel...