diagnosis
What should I expect during a colonoscopy?
A colonoscopy is a test that checks your colon and rectum. The doctor uses a scope, a long thin tube. It has a light and a tiny camera on the end.
A colonoscopy lets your doctor look inside your rectum and colon. The doctor uses a tool called a scope. A scope is a long, thin tube with a light and a small camera. A colonoscopy checks your entire colon and rectum, not just part of it. During the test, your doctor can see problems like inflamed tissue, ulcers, and polyps. Polyps are growths on the lining of the colon, and some can turn into cancer. Doctors use colonoscopy to find the cause of symptoms such as bleeding or belly pain. Other symptoms include ongoing changes in bowel habits or weight loss with no clear reason. Colonoscopy is also used to screen for polyps and cancer before symptoms appear. Screening tests look for signs of disease before you have any symptoms. This can help find problems early, when they may be easier to treat. If your doctor finds a polyp during the colonoscopy, it can be removed at the same time. Your care team can explain what to expect before, during, and after your colonoscopy.
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