Attitude and perceptions toward miscarriage: a survey of a general population in Japan.

Miscarriage is the greatest complication of pregnancy, and 70-80% of early miscarriages are mostly due to chromosomal abnormalities in the embryo. There is no evidence that stress is a direct cause of miscarriage. Despite these findings, in a national US survey on the causes of miscarriage, many Americans mistakenly attributed miscarriage to the mental state or behavior of the women.