According to Mayo Clinic, symptoms of colon cancer include rectal bleeding, persistent abdominal discomfort, unexplained weight loss, weakness or fatigue, the feeling that one's bowels do not completely empty and notable... More »

Persistent abdominal pain, sometimes associated with gas or cramps, may occur in patients with colon cancer, states Mayo Clinic. In the early stages of the disease, there are often no symptoms. When symptoms occur, they ... More »

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Most cases of colon cancer do not show symptoms, but symptoms such as abdominal pain, weight loss, diarrhea, narrow stools, weakness and rectal bleeding may indicate the presence of colon cancer, as stated by Mayo Clinic... More »

The most common symptoms of colon cancer include blood in the stool, changes in bowel behavior such as diarrhea or constipation, unexplained weight loss, or general fatigue and weakness, according to Mayo Clinic. Many pe... More »

Most cases of colon cancer do not show symptoms, but symptoms such as abdominal pain, weight loss, diarrhea, narrow stools, weakness and rectal bleeding may indicate the presence of colon cancer, as stated by Mayo Clinic... More »

Symptoms of malignant neoplasms in the colon include red or very dark blood in the stool, a change in bowel habits, unexplained weight loss, frequent gas pains and stools that are unusually narrow, according to the Natio... More »

The symptoms of rectal cancer include changes in bowel habits, rectal bleeding or blood in the stool, and continuous abdominal discomfort, including gas, cramps or pain, explains Mayo Clinic. Other symptoms include a con... More »