Colon cancer is the proliferation of malignant cells in the colon, which, along with the rectum, is in charge of storing faeces which are then expelled through the anus. That is why this is a very favorable area for the development of a cancer, since accumulated waste substances. Also, its causes are also determined by genetics, sedentary lifestyle and previous illnesses, such as polyps, ulcerative colitis and other cancers. The most obvious symptoms of the disease begin to make visible when the disease is advanced: alternating between diarrhea and constipation, blood in the stool, abdominal pain, loss of appetite, weight loss and fatigue. If detected early has a good chance of healing, and its most common treatments radiotherapy, chemotherapy, immunotherapy to strengthen the body's defenses, and surgery. By the operation of the affected colon cancer if you are well localized part is removed.