This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology in Relation to Reproduction, Subject name: Gynaecology & Obstetrics
In cases of hypergonadotropic hypogonadism in males- 
Select and explain. 
A. FSH will be normal, B. FSH is elevated, C. Testosterone is elevated, D. None of the above
B: FSH is elevated
Answer: B: FSH is elevated 
Explanation: Ans. is 'b' i.e., FSH is elevated * A very high FSH would indicate a testicular cause, (hypergonadotropic hypogonadism)* A very low FSH would indicate pretesticular (hypothalamic/pituitary) cause.* A normal FSH would indicate a posttesticular cause.