Internal hemorrhoids develop inside the anal canal.
External hemorrhoids develop near the anal opening. Both types can occur at the
same time.
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By
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Healthwise Staff |
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Primary Medical Reviewer
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Anne C. Poinier, MD - Internal Medicine |
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Specialist Medical Reviewer
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Kenneth Bark, MD - Surgery, Colon and Rectal |
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Last Revised
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March 16, 2012 |