Human chorionic gonadotropin 8000mIU/mL arrest may be related to embryonic factors, maternal factors, paternal factors and so on. 1. Embryonic factors: when the embryo chromosome is abnormal, it can cause the phenomenon of embryonic arrest. Common abnormal chromosomes include chromosome 21 and chromosome 18. 2. Maternal factors: such as maternal infection virus, gestational diabetes, luteal insufficiency, alcohol, drugs and other reasons, can all affect the development of the fetus, fetal deformity or infertility phenomenon. 3. Father factors: the decline in male sperm quality, sperm cell malformation rate, mortality rate increases, resulting in chromosomal abnormalities in the embryo, and embryonic sterilizations also have a great relationship. It is recommended that patients with fetal failure go to the hospital in time, do relevant examinations, and follow the doctor’s instructions for treatment after clarifying the cause of the disease, so as to avoid delaying the condition.