Can a mild anal fissure heal on its own?

Jan 21, 2025 Source: Cainiu Health
Disease description:

I have recently noticed some pain during bowel movements, occasionally accompanied by blood streaks. After visiting the hospital, I was diagnosed with a mild anal fissure. The doctor mentioned that adjusting my diet and lifestyle habits can help promote healing. I would like to know whether a mild anal fissure can truly heal on its own, and how long the healing process usually takes?

Doctor's answer (1)
Dr. Li Jingxiang

Mild anal fissures refer to superficial tears in the skin or mucous membrane of the anus, usually caused by excessively hard or large stools that lead to excessive tension in the anal sphincter. Mild anal fissures may heal spontaneously under certain conditions.

Patients with mild anal fissures should adjust their diet, consume more foods rich in dietary fiber, maintain fluid balance, and relieve constipation to alleviate symptoms. It is important to maintain cleanliness and hygiene of the anal area by bathing regularly and changing underwear frequently. Prolonged sitting or standing should be avoided, and appropriate exercise is recommended, though strenuous activities should be avoided. Additionally, under a doctor's guidance, patients may perform daily sitz baths using warm saline or potassium permanganate solution to promote blood circulation, clean the wound, and reduce pain.