Fetal arrest, which is the cessation of embryonic development, can also be called fetal abortion, and is one of the main causes of spontaneous abortion in early pregnancy. With the rapid development of society, the stimulation of external adverse factors such as the deterioration of the natural environment and the increase of social pressure, the incidence of fetal abortion shows a gradual increase. In the early stage of embryonic development, the embryo is extremely sensitive to the influence of drugs and environmental factors, and various harmful factors can cause abnormal development of the embryo at this time. Studies have shown that a history of exposure to trace elements, heavy metals and harmful factors is the main cause of fetal abortion. Low levels of zinc and copper and high levels of lead have been found in pregnant women who have experienced fetal abortion. Zinc is an essential trace element in fetal growth and development, correlates with the activity of many enzymes in the human body and plays an important role in fetal growth and development. Zinc deficiency during fetal life can cause fetal chromosomal aberrations, congenital malformations and central nervous system malformations; when men who provide sperm have high levels of lead in their bodies, it can affect sperm quality and lead to fertilized egg division and abnormal fetal development. In addition, living in an air-polluted environment for a long time can easily trigger fetal abortion. Renovation can lead to indoor air pollution, such as containing formaldehyde and benzene, too much exposure may cause miscarriage, stillbirth or fetal malformation; sulfur dioxide in the air is one of the main pollutants in the atmosphere, sulfur dioxide chronic poisoning can lead to abnormal embryo development. With the improvement of living conditions, the number of pet owners has gradually increased, and pets are prone to carry parasites such as Toxoplasma gondii, which can also easily lead to fetal abortion when pregnant women are infected with parasites. In addition, long-term noise occupations, chronic stress or anxiety in early pregnancy can lead to emotional stress, which in turn may increase the risk of early fetal abortion in pregnant women.