Liver MRI is normal but the cause of high alpha-fetoprotein may be liver disease, need to further improve the relevant examination, may also be caused by the rise of alpha-fetoprotein during pregnancy, the recent stress of life irregularities and other physiological factors lead to elevated, need to consult a doctor in time, a clear diagnosis. 1. Liver disease: normal liver nuclear magnetic resonance does not exclude liver disease, it is necessary to improve the relevant examination in time, hepatitis, cirrhosis, liver cancer and so on can make the value of alpha-fetoprotein rise, it is necessary to improve the liver function, hepatitis B examination, etc., to further clarify. 2. Elevation of alpha-fetoprotein during pregnancy: transient elevation of alpha-fetoprotein occurs during pregnancy, and the value of alpha-fetoprotein can also be used to monitor the status of the fetus, and the alpha-fetoprotein of malformed fetus will be persistently elevated. 3. Physiological factors such as poor lifestyle habits: the value of alpha-fetoprotein will rise during adolescent growth and development, excessive stress, not resting well, etc. will lead to elevated alpha-fetoprotein. Elevated alpha-fetoprotein needs to be taken seriously, and timely medical treatment should be done to avoid delay in diagnosis and treatment.