Inclusion Criteria:  both sex successful drained appendicular abscess  Exclusion Criteria:  generalized peritonitis pregnancy cases suspected of cancer caecum, inflammatory bowel disease, failure or difficult initial drainage e.g. pelvic abscess, appendectomy performed at the time of drainage, non-cooperative patients for regular follow up and abscess less than 3 cm if showed improvement of clinical and radiological signs within 3 days of antibiotic therapy alone.