Repair of anal fissure. Feingold means every word. Wald A, et al. If you have not had a bowel movement after a couple of days, ask your doctor about taking a mild laxative. About our health information At Bupa we produce a wealth of free health information for you and your family. Before surgery is considered, your doctor will re-examine you and may conduct other tests to determine why other treatments have failed to heal the fissure. As a result, many patients may try not to have bowel movements to prevent pain. You may be given a date for a follow-up appointment to check that your wound and fissure are healing properly. These preparations may have adverse effects and a patient in one study found that topical steroid precipitated extensive anal herpes, previously occult. Preoperative Information Prior to anal fissure surgery, you will be asked not to eat or drink anything after midnight prior to your surgery. Cook AJ. Chronic anal fissure has been described as an ischaemic ulcer. Healthwise Staff Medical Review: Anal Fissures are tears in the skin around the anus.