The probability of embryonic arrest after having fetal buds and a fetal heart is about 10%. Fetal arrest after having fetal heartbeat and fetal buds may be caused by sudden external stimuli, emotional problems or disease factors during pregnancy. The main causes of fetal arrest embryonic chromosomal abnormalities cause embryonic development to stop. Infectious diseases, most commonly toxoplasma virus infection, rubella virus infection, herpes simplex virus infection, can also cause embryonic development to stop. In addition, abnormal endocrine function, bad lifestyle habits, and abdominal injuries caused by external forces may also lead to abnormal embryonic development and fetal arrest. Therefore, in the early stage of pregnancy, you need to have regular and regular obstetric checkups, strengthen nutrition, keep a happy mood and avoid bad habits.