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: Physiology
Antibodies against sperms may develop after: 
Select and explain. 
A. Trauma, B. Infection, C. Vasectomy, D. Orchidectomy
C: Vasectomy
Answer: C: Vasectomy 
Explanation: C i.e. Vasectomy 50% of men who have been vasectomized develop antibodies against spermatozoaQ. This holds significance, as because of these antibodies reversal of vasectomy may not restore feility, even when the reversal is successful.