Anal fissure: What causes it and when to see a doctor

Anal fissures can cause sharp pain and bleeding during bowel movements. Understanding common triggers, symptoms and warning signs can help you seek timely medical care.

12 Aug, 2026

N. Lothungbeni Humtsoe

What is anal fissure?

An anal fissure is a small tear in the lining of the anus often causing sharp pain and bleeding during bowel movements. Here are key things to know:

Source: Thehealthsite

Frequent diarrhoea

Persistent loose stools can irritate and damage the anal tissue.

Source: Thehealthsite

Childbirth

Vaginal delivery can increase pressure around the anal area, raising the risk.

Source: Thehealthsite

Straining

Repeatedly pushing during bowel movements can increase pressure and trigger a fissure.

Source: Thehealthsite

Constipation

Passing hard or dry stools can stretch and tear the anal lining.

Source: Thehealthsite

When to see a doctor

Seek medical advice if pain or bleeding persists, fissures keep returning or symptoms become severe. Persistent fissures may require prescription treatment or further evaluation to rule out other conditions.

Source: Thehealthsite

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