Biochemical pregnancy is a pregnancy in which the fertilized egg dies at the stage of apoptosis and necrosis, and has not yet implanted, so there is no such thing as “a few days after implantation, it is easy to biochemistry”. Biochemistry is biochemical pregnancy, refers to the fertilization of the egg but did not implant, so there is no “a few days after the implantation of biochemistry, women generally appear to delay the menstrual situation. The clinical manifestations of biochemical pregnancy are vaginal bleeding, white membranous discharge, etc. Clinical diagnosis can be clearly made by checking the human chorionic gonadotropin in the blood, and the etiology of biochemical pregnancy is mostly related to endocrine status, endometrial status, immune status, and the quality of embryo, etc. Occasionally, biochemical pregnancy occurs once in a while. Occasionally, a biochemical pregnancy does not require special treatment. However, if recurrent biochemical pregnancy occurs, it is necessary to find the cause of the disease in time and carry out targeted treatment, after standardized treatment, the prognosis is higher, and can improve the chances of pregnancy. It is recommended to do more daily exercise to strengthen the resistance. It is recommended that both spouses go to the hospital for a pre-pregnancy eugenics health checkup to assess whether their bodies are suitable for pregnancy; quit smoking and drinking, and develop good living habits.