It is often hard to limit the effects of therapy so that only cancer cells are removed or destroyed. Because healthy tissue may also be damaged, treatment can cause unpleasant side effects.

The side effects of cancer treatment are different for each person, and they may even be different from one treatment to the next. Doctors try to plan treatment in ways that keep side effects to a minimum, and they can help with any problems that occur. For this reason, it is very important to let the doctor know about any health problems during or after treatment.

Note: Regular follow-up exams are very important after treatment for colorectal cancer. The cancer can recur at or near the site of the original tumor or can spread to another area of the body. The doctor will continue to check closely so that, if the cancer comes back, it can be treated again as soon as possible.

Often, a social worker or enterostomal therapist at the hospital or clinic can suggest groups that can help with rehabilitation, emotional support, financial aid, transportation or home care.