How long after a colonoscopy will you poop?
Michael Gray
Updated on April 24, 2026
It could take 2 to 3 days before you have a bowel movement after your colonoscopy because you completely emptied your colon and rectum ahead of the procedure. You may notice a little bit of blood in your first stool after your colonoscopy, especially if your doctor removed a polyp or took a biopsy of abnormal tissue.