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: Gynaecology & Obstetrics
Which of the following is true about obstructive azoospermia: 
Select and explain. 
A. FSH and LH increased, B. Normal FSH and normal LH, C. LH raised/ Normal FSH, D. FSH raised, Normal LH
B: Normal FSH and normal LH
Answer: B: Normal FSH and normal LH 
Explanation: Normal FSH and LH level indicate an obstructive lesion in the vas or epididymis. High FSH indicates gonadal failure. 
Low FSH Indicates pituitary or hypothalamic failure.