HCG dilution and HCG value are essentially the same, only the scope of application is different. When the HCG value is too high and exceeds the recognition range of the laboratory machine to give the result, it is often more accurate to measure after diluting a certain percentage, and the HCG dilution value obtained at this time is the HCG dilution value. The specific scope of application of HCG value and HCG dilution is as follows: I. HCG value 1, early pregnancy diagnosis: HCG value is very important in early pregnancy, it can maintain the normal progress of pregnancy, but also can directly act on the hypothalamus to inhibit ovulation. The HCG value will increase in early pregnancy, reaching its peak in 8-10 weeks of pregnancy and will gradually decrease in about 10 days. The diagnosis of ectopic pregnancy can be confirmed if a gestational sac or fetal heartbeat is found outside the uterine cavity at the same time; 3. monitoring of embryonic abortion: the HCG value is monitored dynamically during pregnancy, and if it no longer rises and there is no fetal heartbeat on ultrasound, or no fetal heartbeat or fetal bud is seen, embryonic abortion can be diagnosed. Dilution of HCG1: When staph or choriocarcinoma is suspected, the HCG value will rise, so it is necessary to dilute the HCG value to get more accurate results. In addition, many tumors can also secrete HCG, resulting in significantly higher HCG value, but it may not be easy to detect clinically and need to measure HCG dilution data. efficacy. If the HCG dilution value gradually decreases after chemotherapy, it means that chemotherapy is effective; if the HCG dilution value does not decrease significantly after chemotherapy, we should consider adding other chemotherapy drugs or even consider surgical treatment such as hysterectomy.