[Anal fissure: conservative treatment].

Anal fissure is a common and painful disorder. Conservative treatment must be reserved for acute forms. Hygiene rules, stool softeners and topical local anaesthetic agents are the mainstays of treatment. Healing often takes long time. Recurrences can be prevented with chronical prescription of stool softeners. Surgical treatment is indicated for chronic fissures, acute fissures refractory to 2 monthes conservative treatment and persistent painful forms.