Anal fissures are classified into acute or chronic. Acute fissure (lasting 8-12 weeks) may be treated conservatively with stool softeners, sitz bath and analgesics. Chronic fissures (more than 3 months) are more stubborn and difficult to heal.
Treatment is surgical division of the anal muscles known as Lateral Anal Sphincterotomy. In experienced hands the results are very good with near instant relief of symptoms. Other options include creams and suppositories but these are associated with side effects like headaches.
