Hypoechoic nodule 11mm in the liver may be due to hepatic hemangioma, hepatic cysts, etc., or it may be due to malignant tumors such as hepatocellular carcinoma. If it is caused by benign disease, it is not serious, if malignant tumor, it is serious. Liver hypoechoic nodule is the descriptive language used in ultrasound to refer to the presence of a localized occupying lesion in the liver, with a diameter of 11 mm, and the density of the lesion tissue is lower than that of the surrounding liver. It can be seen in some benign diseases such as hepatic hemangioma and hepatic cysts, and also in some malignant tumors such as hepatocellular carcinoma. Hepatic hemangioma usually has no clinical symptoms, 11mm tumor is small, usually do not need special treatment, regular follow-up can be. Hepatic cysts are small in size and do not require treatment without symptoms. In the case of hepatocellular carcinoma, appropriate treatment options need to be selected according to the patient’s condition. In the case of liver ultrasound hypoechoic nodule, one should go to the hospital to continue to improve the relevant examinations such as enhanced CT, MRI, etc., to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.