Fetal termination may be caused by bad life habits, endocrine disorders, uterine abnormalities and so on. 1. Bad life habits: Bad life habits, such as staying up too late during pregnancy, drinking alcohol, coffee and drugs, may lead to embryonic sterilizations. Excessive exposure to radioactive substances may also occur. 2. Endocrine disorders: embryos in the early stages of development, need a variety of hormones to maintain, including human chorionic gonadotropin, progesterone, estrogen, if the level is low, can not meet the needs of the embryonic development, may cause foetal termination. 3. Abnormalities of the uterus: If the mother has abnormalities of the uterus, such as uterine fibroids, uterine developmental deformities and so on, it may lead to embryonic sterilizations. In the clinic is more common is the bicornuate uterus or endometrial polyps, may lead to embryonic sterilizations. There are many reasons for fetal arrest, it is recommended to go to the hospital to check the body during the preparation stage, at the same time, to quit smoking and alcohol, avoiding fatigue, relaxing, and have special circumstances in a timely manner to the hospital.