What to Expect With a Colonoscopy
What Is a Colonoscopy?
It’s a test of your colon and rectum. Your doctor uses a long, thin tube with a camera on the end to see deep inside your colon. That can help spot small growths called polyps that can become cancerous later. If you’ve had pain, bloody stool, constipation, or diarrhea, a colonoscopy also may show the reason for it.