The symptoms of colon disorders vary by disorder but can include rectal bleeding, persistent abdominal discomfort, bowel habits change and fatigue, according to the Colon Cancer Alliance. These symptoms come with colon disorders that include colon cancer, colon polyps and ulcerative colitis, explains the U.S. National Library of Medicine website.
For colon cancer, symptoms only appear after the disease has spread in the body. There is no pain in the initial stages, as the American Cancer Society indicates. Cancer screening is recommended for people with no symptoms, this way the condition is detected early enough thus easier to treat. Diarrhea occurs when a patient has inflammatory bowel disease because the affected parts of the colon cannot reabsorb water, as Healthline notes.
A doctor needs to look at the patent's full medical history as well as his family's history for all risk factors. Rectal bleeding results in dark stools and blood in the stool, and the patient may experience narrowing of the stool. Fever, loss of appetite, severe pain, nausea and chills characterize diverticulitis. In extreme cases, constipation or diarrhea occurs. Since an inflamed sigmoid presses the urinary bladder in men, it results in high urinal urgency, according to Harvard Medical School.