Intrahepatic hypoechoicity often suggests hepatic cysts, hepatic hemangiomas, hepatic adenomas, etc., which may also be malignant tumors. 1. Liver cysts: they are common benign cystic lesions in the liver, mostly congenital diseases, usually without clinical symptoms. On ultrasound, it is often characterized by round or round-like hypoechoic or liquid dark area in the liver, with clear boundary, intact periphery, good internal translucency and enhanced posterior echogenicity. 2. Hepatic hemangioma: ultrasonography shows hyperechoic or mixed echogenicity, with uneven echogenicity, honeycomb or cord-like changes, and irregular echogenicity can be seen in the area, and “fast in and slow out” can be seen in CT enhancement scan. 3. Hepatic adenoma: ultrasonographic manifestation is round or round hyperechoic nodule with clear boundary, distal echo can be enhanced, and lateral acoustic shadow can be seen. 4. Hepatic malignant tumor: ultrasonographic manifestation of uneven echo hyperechoic, unclear boundary, irregular morphology, CT enhancement scan can be seen as “fast in, fast out” manifestation. When there is intrahepatic hypoechoic, it is necessary to consult a doctor in time, complete the relevant examinations, and carry out standardized treatment under the guidance of the doctor.