Intrahepatic hypoechoic refers to the presence of hypoechoic signals in liver occupying lesions during imaging of the liver, which are considered to be caused by liver abscess, hepatic hemangioma, hepatocellular carcinoma, hepatic cysts and other diseases. 1. Liver abscess: According to the tips of Ultrasound Medicine, the diagnostic points of liver abscess include unclear boundary in the liver, hypoechoic, and multiple small no echoes are seen in the liver. 2. Hepatic hemangioma: Hepatic hemangioma can be shown as hypoechoic, hypoechoic, anechoic, or mixed echoes of different sizes on sonogram. Therefore, intrahepatic hypoechoicity does not exclude the possibility of hepatic hemangioma. 3. Hepatocellular carcinoma: most of the intrahepatic tumors with diameter less than 2 cm are hypoechoic. In addition, metastatic hepatocellular carcinoma may also have intrahepatic hypoechoicity. 4. Liver cysts: most of these liver lesions are hypoechoic. Relying on intrahepatic hypoechoicity alone is not enough to make a clear diagnosis of intrahepatic lesions, which should be confirmed by further examination and then cooperate with doctors for treatment according to the primary disease.