Analysis of the causes of hydatidiform mole in women. Hydatidiform mole is an abnormal condition during pregnancy that usually occurs in the early stages of the embryo. Its biggest feature is that the embryo cannot develop normally and forms cell clusters similar to grape granules, thereby destroying the normal pregnancy process. Some women may have molar pregnancy multiple times. So, what are the reasons why women suffer from molar pregnancy? The following is explained from four aspects. 1. legacy