After pregnancy in the 12 weeks hcg value changes a lot, there are curvilinear changes, pregnancy to about 40 days, test hcg peak 30,000 is among the normal range. In the beginning of pregnancy 8 weeks time, hcg value doubles every 48-72 hours, 8-10 weeks hcg value reaches peak plateau, usually reaches 100,000 or more than 100,000, some even reach more than 200,000, and then lasts about 4 weeks without significant growth. The examination should be done in conjunction with the number of days of pregnancy and various tests to determine if the peak hcg is normal. It is necessary to determine intrauterine pregnancy through ultrasound and check the exact location of the gestational sac, because if it is , measuring blood hcg may also reach 30,000. In addition, if it is a gravid fetus after a clearance operation, the hcg value will also reach 30,000, and the value continues to rise to exclude choriocarcinoma as soon as possible.