The type of traitement administered depends on the stage of development of the cancer. The earlier cancer is detected in its development, the better the results.

surgery

Surgery is the main treatment. It consists of removing the affected part of the colon or rectum, as well as some healthy tissue around the tumor. If the tumor is at an early stage, for example at the polyp stage, it is possible to simply remove these polyps during a period of colonoscopy.

If you cancer touched the rectum and much of the tissue had to be removed, a colostomy. This involves creating an artificial anus through a new opening in the abdomen. The faeces are then evacuated in an adhesive pocket located on the outside of the body.

Preventive surgeries are sometimes performed in people at high risk of colorectal cancer.

Radiotherapy and chemotherapy

These treatments are often necessary to eradicate the cancer cells that have already migrated into the lymph nodes or elsewhere in the body. They are most often administered as adjuvant treatments, and are sometimes given as a palliative treatment.

La radiotherapy uses different sources of powerful ionizing rays directed at the tumor. It is used before or after surgery, as the case may be. It can cause diarrhea, rectal bleeding, fatigue, loss of appetite, and nausea.

La chemotherapy consists of administering, by injection or in the form of tablets, toxic chemical agents. It can cause several side effects, such as fatigue, nausea, and hair loss.

pharmaceuticals

Medicines that limit the proliferation of cancer cells are sometimes used, alone or in addition to other treatments. Bevacizumab (Avastin®), for example, limits tumor growth by preventing new blood vessels from forming inside the tumor. It is indicated when the cancer is metastatic.