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People who think they may be at risk should discuss this with their doctor.
A sigmoidoscope is a thin, tube-like instrument with a light and a lens for viewing.The last 6 inches are the rectum and the anal canal.The anal canal ends at the anus (the opening of the large intestine to the outside of the body.Anything that increases your chance of getting a disease is called a risk factor.Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer.Colon cancer is a disease in which malignant (cancer) cells form in the tissues of the colon.1 The colon is part of the body's digestive system.
The digestive system removes and processes nutrients ( vitamins, minerals, carbohydrates, fats, proteins, and water) from foods and helps pass waste material out of the body.
The digestive system is made up of the esophagus, stomach, and the small and large intestines.
The first 6 feet of the large intestine are called the large bowel or colon.
It may also have a tool to remove polyps or tissue samples, which are checked under a microscope for signs of cancer.
Colonoscopy: A procedure to look inside the rectum and colon for polyps, abnormal areas, or cancer.
A colonoscope is inserted through the rectum into the colon.