Glossary

Fissure

Fissure

Fissur·Also: Einriss

A fissure is a fine tear or crack in tissue, for example a painful tear in the lining of the anus (anal fissure) or a fine crack in a bone.

Symptoms rather than terms?

Describe what's going on — we'll find the right doctor for you.

Editorial content · as of 9/5/2026