The majority of cases of high human chorionic gonadotropin indicate pregnancy, but there are a few cases that may be caused by tumors, drugs and miscarriage, etc. In this case, it is necessary to seek medical attention in a timely manner to determine the cause of the disease according to the specific situation and examination results. 1. This hormone has a high specificity and is mostly secreted by embryonic cells after the formation of the fertilized egg; 2, tumors: some tumors of the reproductive system or other systems may also lead to high human chorionic gonadotropin, the more common ones are malignant staphyloma, choriocarcinoma, etc., which occur mostly after normal delivery or abortion, sometimes accompanied by abdominal pain and severe pregnancy reactions. A few tumors in the lung, adrenal gland and liver can also produce human chorionic gonadotropin, which can be clearly diagnosed by ultrasound and CT examination. The components of these drugs are similar to human chorionic gonadotropin, so the metabolism of the drug components into the blood will lead to high human chorionic gonadotropin in the blood, and can also lead to a positive urine pregnancy test, the patient usually has a clear history of drug use, and usually about two weeks after discontinuation of the drug can naturally turn negative; 4, miscarriage: after miscarriage, the embryonic tissue is cleared from the body, no longer secreting new human chorionic gonadotropin, but the hormone in the blood needs to be completely metabolized after a period of time. The high chorionic gonadotropin level within three weeks after miscarriage is usually due to the hormone not being completely metabolized, not pregnancy.