CAUSES OF INFERTILITY anovulation 30% anatomic defects of the female genital tract 30% *abnormal spermatogenesis 40% male factors and ovulation disorders---commonly observed causes BbT biphasic temperature * analysis of a semen specimen *hysterosalpingogram *diagnostic laparoscopy---complemenyary to the hysterosalpingogramCAUSES OF INFERTILITY *anovulation 30%. *anatomic defects of the female genital tract 30%. *abnormal spermatogenesis 40%. *male factors and ovulation disorders---commonly observed causes *BBT,biphasic temperature *analysis of a semen specimen *hysterosalpingogram *diagnostic laparoscopy---complemenyary to the hysterosalpingogram