Ọgwụ antisperm (ASA) - ọgwụ mgbochi nke ahụ mmadụ mepụtara megide antigens spam.Krause 2017: 109) Ihe omumu nke ASA bu otu n’ime ihe kpatara mbelata imu aka ma obu imu nwa imu nwa: ASA na emetuta oru nke spermatozoa, megharia mmeghari acrosomal (AR), ma megharia mmeghari nke nwoke na nwanyi, itinye ya na mmepe nke ẹmbrayo (Restrepo 2013na - akpata iberibe DNA (Kirilenko 2017) Mmụta banyere ụdị anụmanụ dị iche iche egosiwo mmekọrịta dị n'etiti ASA na nbu nwa ebu n'afọ tupu ma ọ bụ mgbe emesasịrị (Krause 2017: 164) A na-enyocha nsonaazụ mgbochi nke ASA n'oge mmepe nke ọgwụ mgbochi ọrịa mgbochi maka mmadụ (Krause 2017: 251), yana iji belata ma jikwaa ọnụ ọgụgụ anụ ọhịa (Krause 2017: 268).