A National Cancer Institute Comprehensive Cancer Center

 

Patients & Families

Health Care Professionals

Researchers

Donors & Volunteers

Employees

 

Health Encyclopedia

 

 

Internal and External Hemorrhoids

Picture of internal and external hemorrhoids

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

By Healthwise Staff
Primary Medical Reviewer Anne C. Poinier, MD - Internal Medicine
Specialist Medical Reviewer Kenneth Bark, MD - Surgery, Colon and Rectal
Last Revised March 16, 2012

Last Revised: March 16, 2012

Author: Healthwise Staff

Medical Review: Anne C. Poinier, MD - Internal Medicine & Kenneth Bark, MD - Surgery, Colon and Rectal

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

To learn more visit Healthwise.org

© 1995-2012 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.