When is a couple infertile?
However, this definition is not valid for all age groups. For example, a woman over 35 should seek the aid of a specialist after “trying” for six months. So should patients with endometriosis, polycystic ovarian syndrome (PCOS), obstructed oviducts, irregular menstrual cycles, other chronic diseases, or couples who suspect problems with the man.
One should distinguish primary from secondary infertility. Primary is one in which no pregnancy was ever achieved. Secondary infertility happens in half of the cases. In this kind of infertility, at least a case of pregnancy (and often birth) has been achieved previously.
About half of the reasons leading to infertility have to do with the male, and the rest with the female. Often it is a combination of the two, whereas reasons for other cases remain obscure.