Generally speaking, after there is fetal heartbeat and fetal buds, the probability is that there will not be fetal arrest, but it cannot be ruled out that a small number of patients may also experience fetal arrest. Fetal heart and fetal buds are the basic characteristics of normal embryonic development, and fetal heart is an important criterion for determining whether there is fetal arrest. Generally speaking, if there are fetal heart and buds, then the probability is that there will not be fetal arrest, but if the subsequent development of itself is abnormal or the mother has other disease factors, then the phenomenon of fetal arrest may occur. For example, if the mother’s protein, vitamins and other nutrients intake is not enough to meet the basic needs of the embryo, then it may affect the growth and development of the fetus and the phenomenon of fetal arrest. There is also the subsequent embryo chromosome gene mutation, or blood HCG or progesterone lower, then also will lead to have the phenomenon of fetal arrest. Therefore, after having fetal heartbeat and fetal buds, there is still a possibility of fetal arrest, throughout the pregnancy, pregnant women should maintain a balanced diet, a good work routine, regular checkups, and if there is any abnormality, timely treatment.