How The Colon Works
Food begins its journey through the body at the mouth. It then moves into the small intestine, where nutrients are absorbed. The colon — also known as the large intestine or large bowel — absorbs water from digested food. Muscular contractions of the colon move the waste left over from this process to the rectum. A bowel movement expels the solidified waste from the body.
What Happens If Your Colon Doesn’t Function Properly
The colon sends out signals when it isn't working properly. It’s vital that you pay attention to these signals. Consult your doctor if you experience the following:
- Abdominal pain — especially on the left side
- Nausea or vomiting
- Persistent diarrhoea or constipation
- Rectal bleeding or bloody stools
- Weight loss or gain
- Fever
The Three Types of Colon Disease
Your doctor will examine you and perform specific tests to determine what, if any, colon disease is present. Colon disease is grouped into three categories, with more specific diagnoses around each.
Inflammatory bowel disease includes:
- Crohn’s disease, an inflammation of the tissues anywhere in the bowel that can go deep into the layers of affected tissues
- Ulcerative colitis, an inflammation of the bowel tissue that usually affects the innermost lining of the colon
Diverticular disease includes:
- Diverticulosis, a common and benign condition in which little pouches protrude from the colon; usually no treatment is required
- Diverticulitis, a condition in which little pouches in the colon become inflamed, causing pain
Colon polyps and cancer include:
- Colonic polyps, small growths in the colon that may be benign or signal the possibility of colon cancer
- Colon cancer, malignant (cancerous) cells found in polyps or the lining of the colon
Click on any of the links above to get a detailed review of these diagnoses.