Focal nodular hyperplasia of the liver is a benign tumor that is usually not serious and only requires regular observation. Focal nodular hyperplasia of the liver is a benign lesion, and the vast majority of patients do not have clinical symptoms. Only some patients will consult the doctor because of mild epigastric pain and discomfort or abdominal mass. Diagnosis is based on imaging tests, and can be confirmed by combining clinical symptoms and laboratory tests. If the nodules of focal nodular hyperplasia of the liver are small in size, do not compress the surrounding liver tissues, and do not show clinical symptoms, they can be observed temporarily and do not require treatment. When the nodule increases in size, presses the surrounding tissues and compresses the hepatic ductal structures, early surgical treatment is recommended. When nodular focal hyperplasia of the liver is found, it is necessary to actively consult the doctor and follow the doctor’s instructions for reasonable treatment.