Colonoscopy
A colonoscopy is a medical procedure that examines the large intestine and rectum. It's performed using a flexible tube with a camera and light on the end.
What it's used for
- To look for changes like ulcers, polyps, or cancer
- To help manage inflammatory bowel disease
- To screen for colon cancer in people at high risk
How it's performed
- The colonoscope is inserted through the anus and moved into the colon
- The camera provides a magnified view of the colon lining on a monitor
Preparation
- You may need to stop taking iron pills and blood thinners a few days before the test
Side effects
- Gas, bloating, cramping, or nausea in the first hour or so
- Minor bleeding after the first bowel movement
- Feeling groggy and confused if you had general anesthesia
After the procedure
- You should take the rest of the day off and arrange for someone to drive you home
- A doctor or nurse will advise on how soon you can eat and drink
- You should consult a doctor if the bleeding continues or the stool contains large amounts of blood or blood clots