Radiation Therapy
The side effects of radiation therapy depend mainly on the treatment dose and the part of the body that is treated. 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.
External radiation may permanently darken or "bronze" the skin in the treated area. Patients commonly lose hair in the treated area and their skin may become red, dry, tender, and itchy. These problems are temporary, and the doctor can suggest ways to relieve them.
Radiation therapy to the abdomen may cause nausea, vomiting, diarrhea, or urinary discomfort. The doctor can suggest medicines to ease these problems.
Radiation therapy also may cause a decrease in the number of white blood cells, cells that help protect the body against infection. If the blood counts are low, the doctor or nurse may suggest ways to avoid getting an infection. Also, the patient may not get more radiation therapy until blood counts improve. The doctor will check the patient's blood counts regularly and change the treatment schedule if it is necessary.
For both men and women, radiation treatment for bladder cancer can affect sexuality. Women may experience vaginal dryness, and men may have difficulty with erections.
Although the side effects of radiation therapy can be distressing, the doctor can usually treat or control them. It also helps to know that, in most cases, side effects are not permanent.
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