Your doctor may advise you to get a colonoscopy if you are:
Examine intestinal signs and symptoms. A colonoscopy can assist your doctor in determining the source of stomach discomfort, rectal bleeding, persistent diarrhea, and other intestinal issues.
Examine for colon cancer. If you’re 45 or older and at average risk of colon cancer (you have no other risk factors for colon cancer than age), your doctor may prescribe a colonoscopy every 10 years. If you have other risk factors, your doctor may advise you to get screened sooner. Colonoscopy is one of a few approaches for screening for colon cancer. Consult your doctor about your best alternatives.
Look for more polyps. If you’ve previously had polyps, your doctor may prescribe a follow-up colonoscopy to search for and remove any new polyps. This is done to lower your chance of developing colon cancer.
Take care of a problem. A colonoscopy may be performed for medical purposes, such as implanting a stent or removing an item from your colon.