The normal reference value for serum alpha-fetoprotein level is less than 25 μg/L, so alpha-fetoprotein 9.73 μg/L is normal. Alpha-fetoprotein is a glycoprotein that belongs to the albumin family and is mainly synthesized by fetal hepatocytes and yolk sac. Elevated alpha-fetoprotein is commonly found in hepatocellular carcinoma, acute and chronic active liver disease and malignant tumors of the reproductive system, etc. It can show higher concentration in many kinds of tumors, and serum alpha-fetoprotein level more than 25 μg/L can be used as a positive test indicator for many kinds of tumors. In daily life, we should pay attention to reasonable diet, eat less high oil, high salt, high sugar food, eat more fresh fruits, vegetables and food rich in high quality protein, eat more food rich in dietary fiber, and try to smoke and drink less. If abnormal alpha-fetoprotein or physical discomfort occurs, it is recommended to go to the hospital in time to improve the examination under the guidance of the doctor, to clarify the cause of the disease, and then give targeted treatment or therapy.