Infertility =s failure to conceive after 12m regular, unprotected intercourse; 6m if age > 35. F/U questions re infertility: How long trying to conceive? How often intercourse? Past success - w/current or other partners? Spontaneous or therapeutic abortion? Prior evaluation? General health, meds, surgeries, etc? Partner's health/issues → infertility etiology 1/3 male, 1/3 female, 1/3 mixed.