gynecology and obstetrics
Unexplained Infertility
Introduction
Infertility is usually considered unexplained when semen in the man is normal and ovulation and fallopian tubes are normal and ovulation is regular in the woman. (See also Overview of Infertility .) Some experts disagree with this definition and recommend continuing to test for other causes even when the man has normal semen and the woman has normal ovulation and fallopian tubes and ovulates regularly. Other experts, who accept the definition above, recommend starting empiric treatments. 