This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Which of the following is the earliest post operative complication of ileostomy? 
Select and explain. 
A. Obstruction, B. Prolapse, C. Necrosis, D. Diarrhea
C: Necrosis
Answer: C: Necrosis 
Explanation: 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.