Which of the following is the earliest post operative complication of ileostomy?

Stoma necrosis is the earliest complication of ileostomy which occur in the early postoperative period. It is caused by skeletonizing the small bowel and/ or creating a tight fascial defect. Other complications of ileostomy are: stoma retraction, dehydration with fluid electrolyte abnormalities, skin irritation, obstruction, parastomal hernia and rarely prolapse. Complications of colostomy: early complication is colostomy necrosis, and parastomal hernia is the most common late complication.