If echogenic enhancement of liver parenchyma is found during ultrasound examination of the liver, if it is diffuse, the following conditions are considered: if the patient is obese, fatty liver is considered in this case; if the patient is a long-term alcoholic, alcoholic liver can also be considered; if the patient has cancer, has used chemotherapy drugs and the liver function is damaged, diffuse echogenic enhancement of liver parenchyma can also occur in this case. If, within the liver, echogenically enhanced nodules with regular morphology and well-defined borders and sieve-like internal echogenicity are found locally, they are often considered to be hemangiomas of the liver. If the patient is infected with other diseases such as hepatitis B or C, and tiny echogenic-enhanced nodules are found scattered in the liver, cirrhotic nodules are considered. If single or multiple echogenic enhancing nodules of large size are found in the liver and the patient has no other medical history, it is best to have further tests to clarify the diagnosis and exclude malignant tumors of the liver.