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Colon Cancer Symptoms

By Lisa Fayed, About.com

Updated: August 2, 2006

About.com Health's Disease and Condition content is reviewed by our Medical Review Board

A Word About Colon Cancer Symptoms: Colon cancer does not always present symptoms. Colon cancer symptoms sometimes do not appear until the disease has progressed into an advanced stage.
Bleeding - Blood in Stool: This is the most commonly experienced colon cancer symptom. As a tumor grows larger, the passage of feces can cause the tumor to bleed. it is common to see blood if the tumor is near the anus, but it is much more common for the blood to be hidden inside the stools.
Weight Loss: An unexpected weight loss accompanied by other symptoms can indicate colon cancer. The pain and discomfort caused by a tumor can lead to loss of appetite, which in turn results in weight loss.
Changes in Bowel Habits: If you are consistently constipated or have diarrhea, this must be evaluated by a physician. Changes in bowel habits also include gas and producing thinner stools. Thinner stools are usually the result of a tumor obstructing the passage of feces. This is one of the more common colon cancer symptoms.
Abdominal Discomfort: Abdominal discomfort can mean many things - bloating, swelling, cramping and feeling full.
Abdominal Pain: Swelling and pain of the abdomen are also symptoms of colon cancer. This usually occurs when the intestine is blocked by a tumor. If the tumor grows large, then nausea and vomiting can occur.
Fatigue: Fatigue is a symptom of many cancers. It can also be a symptom of many other conditions that aren't cancer related. Fatigue experienced with cancer can be mild or severe.
Talking to Your Doctor: Many people feel shy to talk about bowel habits with their doctor, especially women. If you are experiencing any of these symptoms, I can't stress how important it is to talk to your doctor! Better to be safe than sorry!

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