Fissure surgery
is a medical procedure performed to treat anal fissures, painful tears or small cuts in the lining of the anus. Typically, this surgery involves a lateral internal sphincterotomy, where a small incision is made in the anal sphincter muscle to reduce pressure and promote healing of the fissure. Alternatively, advanced techniques like fissurectomy or advancement flap repair may be used. Fissure surgery aims to alleviate discomfort, improve healing, and prevent recurrent fissures. Recovery times vary but are usually relatively short, and most patients experience relief from the symptoms associated with anal fissures following the procedure.