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: Social & Preventive Medicine
Most common immediate complication of vasectomy is 
Select and explain. 
A. Nerve injury, B. Hematoma, C. Syncope, D. None of the above
B: Hematoma
Answer: B: Hematoma 
Explanation: None