The HCG test is a test to determine the level of human chorionic gonadotropin in intravenous blood to determine if you are pregnant, and the cost of the test is about 50-100 RMB. This is related to the reagents used by different manufacturers. 1, HCG check for pregnancy is a very sensitive and accurate indicator. If you have regular menstrual periods, have intercourse without contraceptive measures and have delayed menstruation, you can go to the hospital to check the blood HCG to determine whether you are pregnant, or if you have had intercourse for more than 10 days, you can have your blood drawn and tested. 2, HCG is also used to assist in the diagnosis of ectopic pregnancy, persistently low levels that do not increase more than 2-3 times in a few days should be highly suspected. 3, Staph and trophoblastic tumors play an important role in the diagnosis and follow-up after treatment. Gestational trophoblastic disease or gestational trophoblastic neoplasm requires three consecutive negative transitions before stopping chemotherapy. 4. Some tumor patients such as liver cancer and lung cancer will secrete HCG, accompanied by irregular menstruation, and women with elevated HCG should not ignore this test. Through the understanding of this test, it will no longer be considered as a pregnancy check, but plays a very important role in clinical diagnosis.