Liver abscess is a purulent lesion of the liver caused by a variety of microorganisms such as bacteria, fungi or ameba lysis, and if not treated actively, the mortality rate can be as high as 10% to 30%. The rich ductal system in the liver, including the biliary system, portal system, hepatic arteriovenous system and lymphatic system, greatly increases the probability of microbial parasitism and infection. There are three types of liver abscesses, of which bacterial liver abscesses are often mixed infections due to multiple bacteria, about 80%, amoebic liver abscesses about 10%, and fungal liver abscesses less than 10%. The manifestations are irregular fever, chills, especially in bacterial liver abscesses, and persistent pain in the right upper abdomen, which increases sharply with deep breathing and body position movement. The abscess may have respiratory and abdominal symptoms depending on the location of the abscess. There is often a history of diarrhea. In particular, diabetic patients are at increased risk of developing liver abscesses. Treatment is based on the application of sensitive antibiotics and the choice of percutaneous puncture drainage, surgical drainage or surgical resection of part of the liver.