title: Male infertility.
mesh_terms: D003456:Cryptorchidism / Q000150:complications; D004543:Ejaculatory Ducts; D007172:Erectile Dysfunction; D006801:Humans; D007248:Infertility, Male / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D007985:Leydig Cells; D008297:Male; D013733:Testicular Diseases / Q000150:complications; D014646:Varicocele / Q000150:complications