An alpha-fetoprotein of 190000 is generally not diagnostic of cancer, but only suggests a high likelihood of cancer, and the diagnosis of cancer has to be made by pathologic biopsy. However, if the alpha-fetoprotein is higher than a certain value for a sustained period of time, combined with the results of imaging tests, it is sometimes possible to clinically diagnose primary liver cancer. The normal value of alpha-fetoprotein in normal people is usually below 25μg/L. The level of alpha-fetoprotein can be abnormally elevated in many diseases, such as cancer, pregnancy, liver diseases, etc. 1. Cancer: alpha-fetoprotein is closely related to the development of liver cancer and many kinds of tumors, and can show high concentration in the body of patients with many kinds of tumors, usually more than 500ug/L. At present, alpha-fetoprotein is mainly used for the auxiliary diagnosis of primary liver cancer in clinic, but it can’t be used as the basis for the confirmation of the diagnosis. 2. Pregnancy: serum alpha-fetoprotein level will be elevated in the 3rd-4th month of pregnancy, which is related to the development of fetal liver. 3. Hepatitis and cirrhosis: alpha-fetoprotein is elevated to a certain degree in liver diseases, usually around 50-300 μg/L. If you find that the level of alpha-fetoprotein is too high, you should go to the hospital in time to find out the cause of the disease, so as not to miss the condition.