Both sigmoidoscopy and colonoscopy are nonsurgical procedures that involve use of a tube (endoscope) with a light and camera to examine parts of the large intestine (colon). A sigmoidoscopy is a procedure in which a fiberoptic camera is used to examine the rectum and lower part of the colon. The difference between a sigmoidoscopy and colonoscopy is that a colonoscopy examines the upper part of the colon as well. Read more: Sigmoidoscopy vs. Colonoscopy Article
Multimedia: Slideshows, Images & Quizzes
Colon Cancer: Symptoms, Signs, Screening, Stages
Colorectal cancer (colon cancer) is the cause of many cancer deaths. Learn about the warning signs, symptoms, screening process,...
Colorectal (Colon) Cancer Quiz: Test Your Medical IQ
What is colorectal (colon) cancer and who gets it? Take this quiz to find out how this disease may be prevented.
Picture of Colon
The long, coiled, tubelike organ that removes water from digested food. See a picture of the Colon and learn more about the...
Picture of Colon
The part of the large intestine that serves to remove water from digested food and let the remaining material, solid waste called...
Picture of Colon Cancer
Most, if not all, of these cancers develop from colonic polyps. Removal of these precancerous polyps can prevent colon cancer....
Colon Cancer: How Your Diet Can Affect Colorectal Cancer
Diet, including nutrient, antioxidant, and vitamin intake, affects colon cancer risk. Certain dietary factors either decrease or...
What Is a Polyp? Nasal, Colon, and Other Polyps
Do you know what a polyp is? Learn the definition of a polyp, which can be found in the sinuses, stomach, colon, gallbladder, and...
Related Disease Conditions
Stool Color, Changes in Color, Texture, and Form
Stool color changes can very from green, red, maroon, yellow, white, or black. Causes of changes of stool color can range from foods a person eats, medication, diseases or conditions, pregnancy, cancer, or tumors. Stool can also have texture changes such as greasy or floating stools. Stool that has a uncharacteristically foul odor may be caused by infections such as giardiasis or medical conditions.
Colon cancer (bowel cancer) is a malignancy that arises from the inner lining of the colon. Most, if not all, of these cancers develop from colonic polyps. Removal of these precancerous polyps can prevent colon cancer.
Colon Polyps: Symptoms, Causes, Cancer Risk, Treatment, and Prevention
Colon polyps are common growths on the inner lining of the colon. Colon polyps may become cancerous. There are several different types of colon polyps, and the chance of the polyp becoming cancerous depends on the type, size, and histology. Blood in the stool or rectal bleeding are the most common symptoms of colon polyps. Treatment for colon polyps depend on the type, size, and histology.
Early Warning Signs and Stages of Colon Cancer
Colon cancer or colorectal cancer, is a type of cancer that begins in the cells lining the large intestine (colon). In the early stages of colon cancer, warning signs and symptoms usually don’t occur. Colon cancer usually does not have any signs or symptoms. As the cancer grows and expands it may begin to produce signs and symptoms, for example, diarrhea, constipation, blood in the stool, and narrow or pencil-thin stools.There are four stages of colon cancer; however, The term Stage 0 is sometimes used for a very early cancer that only affects the lining of the intestine. The other stages of colon cancer are stage 1, 2, 3, and 4.
Colon Cancer Prevention
Colorectal cancer is both curable and preventable if it is detected early and completely removed before the cancerous cells metastasize to other parts of the body. Colonoscopy and flexible sigmoidoscopy (along with digital rectal examination and stool occult blood testing) are both effective at preventing colo-rectal cancers and detecting early colo-rectal cancers.
Treatment & Diagnosis
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