Gynaecology & Obstetrics A male with azoospermia. On examination size of testis normal FSH normal testosterone normal. Most probable cause is: A MAL descended testis B Klinefelter's syndrome C Kallmann's syndrome D VAS obstruction 💡 Explanation A male with azoospermia. On examination size of testis normal FSH normal testosterone normal. Most probable cause is: ✓ Correct Answer: D. VAS obstruction