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Internal hemorrhoids: First- to fourth-degree

A first-degree internal hemorrhoid bulges into the anal canal during bowel movements.

A second-degree internal hemorrhoid bulges from the anus during bowel movements, then goes back inside by itself.

A third-degree hemorrhoid bulges from the anus during bowel movements and must be pushed back in with a finger. A fourth-degree hemorrhoid protrudes from the anus all the time.

Illustrations copyright 2000 by Nucleus Communications, Inc. All rights reserved. http://www.nucleusinc.com

Primary Medical Reviewer Adam Husney, MD
- Family Medicine
Specialist Medical Reviewer Brent Shoji, MD
- General Surgery
Last Updated October 10, 2006

WebMD Medical Reference from Healthwise

Last Updated: October 10, 2006
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