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How can a thrombosis happen in hemorrhoids?

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A blood clot can form in an external hemorrhoid, turning it purple or blue. This is called a thrombosis. It can hurt and itch a lot and could bleed. When the clot dissolves, you may still have a bit of skin left over, which could get irritated.

From: Hemorrhoids WebMD Medical Reference

Reviewed by Minesh Khatri on September 18, 2018

Medically Reviewed on 9/18/2018

SOURCES:

FamilyDoctor.org: "Hemorrhoids Overview"; "Hemorrhoids Treatment"; "Hemorrhoids Causes & Risk Factors"; and "Hemorrhoidectomy for Thrombosed External Hemorrhoids."

National Digestive Diseases Information Clearinghouse: "Hemorrhoids."

Sneider, E. , February 2010. Surgical Clinics of North America

Harvard Health Publications: " Hemorrhoids and what to do about them."

Reviewed by Minesh Khatri on September 18, 2018

SOURCES:

FamilyDoctor.org: "Hemorrhoids Overview"; "Hemorrhoids Treatment"; "Hemorrhoids Causes & Risk Factors"; and "Hemorrhoidectomy for Thrombosed External Hemorrhoids."

National Digestive Diseases Information Clearinghouse: "Hemorrhoids."

Sneider, E. , February 2010. Surgical Clinics of North America

Harvard Health Publications: " Hemorrhoids and what to do about them."

Reviewed by Minesh Khatri on September 18, 2018

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