The HCG value is one of the important indicators to show the development of embryo, high HCG does not mean good quality of embryo, HCG should be within the normal range and doubled, normal gestational sac, fetal heart and fetal bud can be seen during ultrasound, this can indicate good quality of embryo and good growth and development of embryo. In case of twins, the HCG level is higher than that of a single fetus, but it does not mean that the embryo is developing well. If the HCG value is abnormally high, more than 200,000, there may be a case of gravidity or multiple pregnancy, if there are more than 2 multiple pregnancies, it is necessary to reduce the fetus in time, which is a more dangerous situation and may cause fetal death. If the initial blood test for HCG is low, it should be rechecked after a week, and if there is no significant doubling, it should be treated by a doctor in time. In addition, it is recommended that pregnant women consume more fresh vegetables and fruits, eat a reasonable diet, engage in appropriate outdoor activities, ensure sufficient sleep, and have regular maternity checkups to improve the quality of the embryo.