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Review
. 2006 Sep-Oct;106(5):517-8.
doi: 10.1080/00015458.2006.11679942.

Physiopathology of the anal fissure

M Van Outryve  1
Affiliations
Review

Physiopathology of the anal fissure

M Van Outryve. Acta Chir Belg. 2006 Sep-Oct.

Abstract

The physiopathology of anal fissures is still not completely elucidated. Most probably, chronic anal fissures are ischaemic ulcers, continuously enhanced by sphincter hypertonia. The dorsal location of most fissures is attributed to the scarcity of arteriolar anastomoses dorsally. The healing process is obstructed by fibrosis, provoked by repeated mechanical injuries and chronic inflammation.

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