Types of Anal Fissures. Not all anal fissures are the same. They can be classified by cause and duration: Primary Fissures: These fissures occur spontaneously, typically due to mechanical trauma ...

An anal fissure is a tear or cut that extends into the anal canal. While many fissures are small, the area is sensitive, and any tear can be painful. About 11% of people are affected, often ...

Anal fissures result from trauma to the inner lining of the anus. The exact etiology is unknown. ... Underlying pathology is the cause of primary but not secondary anal fissures.

Chronic anal fissures are tears in the tissue of the anal canal that last for more than 8 weeks. ... Medications and surgery are the primary treatment options for these persistent anal fissures.