We report a case of a 30-year-old female who presented with symptoms and signs of intestinal obstruction. The patient reported no previous history of abdominal surgery or trauma while clinical and radiographic examinations were not diagnostic. Patient planned for exploratory laparotomy in view of complete intestinal obstruction. Exploratory laparotomy with limited resection of gangrenous segment with primary closure of abnormal ileosigmoid communication with proximal ileostomy with distal mucous fistula. Intraoperatively distal 60cm of ileum, caecum and part of ascending colon was gangrenous there was a fibrous band extending from parities to ileum approximately 60 cm proximal to IC junction. Congenital bands are extremely rare. Their exact incidence is still unknown and usually observed in childhood. This case, therefore, represents an unusual surgical problem in an older individual in which the diagnosis was clinically unexpected. Small bowel obstruction is the most common surgical disorder of the small intestine. Adhesions are by far the most frequent causes followed by hernias, tumors, intussusception, foreign bodies, gallstones, and inflammatory bowel disease. Obstruction by a congenital band is extremely rare and usually observed in childhood. This report presents a 30-year-old female with symptoms of intestinal obstruction, subsequently treated by ligation and division of a congenital band.