Radiation therapy uses high-energy rays to kill cancer cells. It affects cancer cells only in the treated area.
Doctors use different types of radiation therapy to treat cancer. Sometimes people receive a combination of types:
- External radiation
- Internal radiation
- Intraoperative radiation therapy
- Options for Treating Inoperable Liver Metastases from Colorectal Cancer
Side effects depend mainly on the amount of radiation given and the part of your body that is treated.
Body Part | Side Effect |
|---|---|
Abdomen and Pelvis |
|
Overall |
|
Although the side effects of radiation therapy can be distressing, your doctor can usually treat or control them. Also, side effects usually go away after treatment.




