How long is a course of treatment?
External radiation is usually given in a number of treatments (or fractions). The number of treatments is not necessarily related to the seriousness of the cancer. It depends on several factors, including your general health and the site and type of cancer.
You might want to allow time before and after treatment each day, as delays in your appointment might occur.
Image Above: The radiation therapist will explain your treatment to you.
If a high dose of radiation is required it is generally given four or five days a week for five to seven weeks. If a quick response is required, such as to relieve a cough or pain, stop bleeding, or reduce swelling, a shorter course is more likely to be given.