Anal fissure - Diagnosis and treatment - Mayo Clinic - Aleos for anal fissure
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WHAT IS AN ANAL FISSURE? An anal fissure (fissure-in-ano) is a small, oval shaped tear in skin that lines the opening of the anus. Fissures typically cause. Usually this exam is all that's needed to diagnose an anal fissure. An acute anal fissure looks like a fresh tear, somewhat like a paper cut.