Background: An anal fissure is one of the common anorectal disease resulting from a split or tear in the anal canal's skin, it causes pain, bleeding and emotional stress. There are medical and surgical treatment available for treating anal fissures, this study was aimed to compare lord’s dilations and lateral internal sphincterotomy. Methods: An observational study conducted in 64 patient general surgery department, all patients were treated by conservative management first and surgically if required. Lateral internal sphincterotomy or lord’s dilatation were performed among study subjects by randomised process.