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
Most common complication following haemorrhoidectomy is 
Select and explain. 
A. Internal spincter damage, B. Infection, C. Bleeding, D. Urinary retention
D: Urinary retention
Answer: D: Urinary retention 
Explanation: MC Most Common complication following haemorrhoidectomy is Pain.
2nd Common complication following haemorrhoidectomy is urinary retension.