The normal range of alpha-fetoprotein AFP is <25μg/L. The upper limit of normal value of alpha-fetoprotein is different in different hospitals due to the different testing methods and judgment standards used, but the difference is not significant. Alpha-fetoprotein is a glycoprotein secreted by human liver cells or yolk sac during fetal period, and the normal range is <25μg/L. Elevated values may be related to primary liver cancer, testicular cancer, ovarian cancer, teratoma, gastric cancer, pancreatic cancer, viral hepatitis, cirrhosis and other diseases. Physiological elevation of alpha-fetoprotein can be seen in pregnant women, and usually after the birth of the fetus, serum AFP will drop to normal. If the serum AFP exceeds the upper limit of the normal value, you should consult a doctor in time to improve the relevant examinations and make a clear diagnosis under the guidance of a professional physician.