A thrombosed hemorrhoid is a condition in which a blood clot forms
inside a swollen vein in the anus.
External hemorrhoids form outside the anus. This type of hemorrhoid
is more likely to develop a blood clot than an internal hemorrhoid, which
develops within the anal canal.
Symptoms of a thrombosed hemorrhoid include:
Thrombosed hemorrhoids affect only the small veins near the skin
surface (superficial veins). Unlike blood clots in the deep veins, blood clots
in thrombosed hemorrhoids do not travel to the lungs or another part of the
body and do not cause serious problems.
Home treatment may help relieve the symptoms of thrombosed
hemorrhoids. Minor surgery is sometimes needed to remove a painful clot.
March 16, 2012
Anne C. Poinier, MD - Internal Medicine & Kenneth Bark, MD - Surgery, Colon and Rectal
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