This video describes a technique for an ileostomy reversal, which was performed as a second-stage procedure for a total proctocolectomy with ileoanal J-pouch for medically-refractory ulcerative colitis. In this procedure, we start by incising around the ileostomy near the junction of the skin and bowel mucosa. To mobilize the intestine within the abdominal wall, we use electrocautery dissection through the subcutaneous tissues to the level of the fascia. The fascial opening is extended to complete the mobilization of the intestine. Stay sutures are then placed between loops of intestine at the planned site of the anastomosis, and ILA staplers are used to create a side-to-side functional end-to-end anastomosis. The abdominal fascia is then closed with running sutures, the wound is washed with antiseptic, and the skin is brought together with vertical mattresses.