The male contribution to a couple's infertility is approximately:

C. 50%.

DISCUSSION: In the United States of America it has been estimated that approximately 15% of couples have difficulty with conception. Adequate evaluation of the marital unit for infertility demands assessment of the male partner since infertile status may be attributed to the male as much as 50% of the time. A full evaluation of the male partner is important to avoid extended fruitless evaluation and management of the female partner when the male is infertile.