Diseases

Anal Fissure: When to See a Doctor

Updated 2026-06-094 min read

An anal fissure is a small tear in the anal canal that typically causes sharp pain during defecation and a small amount of bright-red bleeding.

What is an anal fissure?

It is a longitudinal tear in the lining of the anal canal, most often caused by passage of hard stool. It can be acute (recent) or chronic (lasting beyond several weeks).

Typical symptoms

Sharp, cutting pain during and after defecation
Small amount of bright-red blood on toilet paper
Spasm of the anal sphincter
Occasional itching during healing

When to seek evaluation

Symptoms persisting beyond 4–6 weeks despite conservative care
Recurrent fissures
Atypical location or appearance
Associated systemic symptoms or weight loss

First-line management

Fibre, hydration, warm sitz baths and topical agents are the basis of treatment. Chronic fissures may require additional medical or surgical options determined after examination.

This page is for general information only

The content here is not a diagnosis or treatment recommendation and does not replace an individual medical evaluation. If your symptoms persist, consult a physician. In emergencies call 112 or the nearest emergency department.

Symptoms Treatments FAQ

Frequently asked questions

Do all fissures need surgery?

No. The majority heal with conservative measures. Surgery is considered mainly for chronic fissures that do not respond.

Can a fissure be confused with hemorrhoids?

Yes. Pain is usually more prominent in fissures, while painless bleeding is more typical of hemorrhoids — examination clarifies the diagnosis.