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Colon Cancer

Symptoms and Signs of Colon Cancer

The symptoms of colon cancer may not appear in the disease’s early stages, and when they do become noticeable, they will likely vary depending on the cancer’s size and location. Further confounding patients and doctors, the symptoms of colon cancer may stem from a condition other than cancer, such as inflammatory bowel disease or irritable bowel syndrome. The signs of colon cancer include diarrhea or constipation; a change in the consistency of stool over a longer period than a couple weeks; narrow stools; rectal bleeding or blood in the stool; persistent abdominal discomfort such as cramps, gas or pain; abdominal pain with bowel movements; unexplained weight loss; and a feeling that the bowel is not completely emptying. 

Locations for Colon Cancer