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Internal and external hemorrhoids

Illustration copyright 2004 by Nucleus Communications, Inc. All rights reserved. http://www.nucleusinc.com

Internal hemorrhoids develop inside the anal canal. External hemorrhoids develop near the anal opening. Both types can occur at the same time.

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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