An Overview of Radiation Treatment for Colon Cancer
Radiation treatment for
colon cancer (also known as radiotherapy) uses high-energy x-rays or other types of radiation to kill cancer cells. There are two types of radiation treatment:
- External radiation treatment uses a machine outside the body to send radiation toward the cancer.
- Internal radiation treatment uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer.
The way the radiation treatment is administered depends on the stage of colon cancer being treated.
Side Effects Associated With Radiation Treatment for Colon Cancer
Side effects associated with radiation treatment for colon cancer depend mainly on the amount of radiation given and the part of the body that is treated. Radiation therapy to the abdomen and pelvis may cause:
- Nausea
- Vomiting
- Diarrhea
- Bloody stools
- Rectal leakage
- Urinary discomfort.
In addition, the skin in the treated area may become red, dry, and tender.
Patients are likely to become very tired during radiation therapy, especially in the later weeks of treatment. Resting is important, but doctors usually advise patients to try to stay as active as they can.
Although the side effects of radiation therapy can be distressing, the doctor can usually treat or control them.
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