Alpha-fetoprotein 9.92μg/L is usually a normal phenomenon, if the patient does not have other adverse symptoms, it can be temporarily observed and not dealt with, on the contrary, it needs to be treated. The value of alpha-fetoprotein has a close relationship with oncological diseases. In the clinical aspect, the value of alpha-fetoprotein is often used as a tumor marker for primary liver cancer, which is used for the diagnosis and efficacy monitoring of primary liver cancer patients. By radioimmunoelectrophoresis, the value of alpha-fetoprotein can be detected, and the normal value should be between 0-25 μg/L. By radioimmunoassay, the normal value of alpha-fetoprotein should be between 0-20 μg/L. By enzyme immunoassay, it is clearly determined that the value of alpha-fetoprotein should be between 0-25 μg/L. Therefore, it can be judged that the value of alpha-fetoprotein 9.92μg/L belongs to the normal range of values, and if the body does not have other adverse symptoms, it can be temporarily observed. However, patients should also be aware of the presence of hepatitis B, hepatitis C and other diseases, and also need to be alert to the emergence of malignant tumors.