question: My husband has been told he has non obstructive azoospermia . he had a biopsy and they retrieved sperm, i wonder how it s possible for him to have no blockage but have sperm. is there anything we can do other than ICSI to become pregnant. We ve had 5 ICSI s and 2 frozen transfers using his frozen sperm from biopsy but none were sucessful, we were told his sperm were good quality when retrieved.