The common causes of embryonic arrest are genetic factors, maternal factors, environmental factors, etc. 1. Genetic factors: Fetal chromosome abnormalities are a common cause of embryonic arrest. It includes chromosome number and structure abnormalities. Commonly, there are 13-trisomy syndrome, 18-trisomy syndrome and 21-trisomy syndrome. 2. Maternal factors: including systemic diseases, genital abnormalities, endocrine abnormalities and so on. (1) Systemic diseases: such as severe infections, severe anemia, heart failure, etc., may lead to embryonic arrest. (2) Genital anomalies: uterine malformation, uterine adhesions, etc. can affect the embryo’s implantation and development. (3) Endocrine abnormalities: such as luteal insufficiency, diabetes mellitus, poor glycemic control, etc. can lead to embryonic arrest. (3) Environmental factors: X-rays, atmospheric pollution, etc. may affect the development of the embryo. If you find that the embryo stops developing, you should consult a doctor in time and follow the doctor’s instructions for treatment.