There are many reasons that lead to more and more pregnancy arrest, mainly related to chromosomal abnormalities, maternal diseases and other factors caused by. 1. Chromosomal abnormalities: abnormalities in the number or structure of embryonic chromosomes or genetic abnormalities will lead to the cessation of embryonic development, which is eugenic. 2. Maternal diseases: the mother herself suffers from high blood pressure, diabetes or heart disease, as well as uterine deformities or endometrial thinning, autoimmune abnormalities and other factors, resulting in the supply of nutrients or blood circulation obstacles, so that the embryo can not develop normally, the phenomenon of arrested development. 3. Other factors: taking drugs during pregnancy, food influence, exposure to radiation examination, harmful chemical substances or viral infections and other factors can also lead to embryonic arrest. There are many factors that lead to more and more fetal arrest after pregnancy, once the situation of fetal arrest should be timely and perfect examination, clear causes of fetal arrest after symptomatic treatment, at least half a year before getting pregnant again, to do a good job of pre-pregnancy checkups.