Relevance. An important medical and social problem of modern obstetrics is threatening
abortion. Among all threatened abortion risk factors today a special attention is given to
genetic factors, in particular, to progesterone receptor gene polymorphism. From a
progesterone receptor gene polymorphism may depend a progesterone receptor response
and a threatened abortion occurring. Determination of the relationship between a
progesterone receptor gene polymorphism and miscarriage should be in a priority of …