Definition:
involuntary inability to conceive
Etiology:
-males: insufficient number or mobility of sperm, the presence of an STD, infection, blockage in the genitourinary tract, genetic conditions structural anomalies, or the presence of a varicocele
-females: STDs, ovulatory dysfunction (failure to ovulate), blocked fallopian tubes, congenital structural, chromosomal disorders, scar tissue, tumors, endometriosis, antisperm antibodies, medications, or psychological distress