Almost everyone has suffered from occurring hard stool at one time in their life-time. But they all do not get ANAL FISSURE. But why I get anal fissure if my stool becomes little hard? I am taking plenty of fluid orally and high fibre diet and generally My stool is soft. But if occasionally I get little hard stool then anal fissure come and then go. I have done colonoscopy results all normal. I want a surgery so that Anal fissure never occur at any circumstances irrespective of hard stool or soft stool as other people do not have to suffer from anal fissure. I want to become anal fissure free. Has any surgery available in medical science that guaranteed never occurring of anal fissure. Pls name of surgery and details about surgery. I am very anxious about it.