Fluid accumulation after liver resection needs to be judged with specific clinical symptoms, signs and auxiliary examination for relevant treatment. 1. If there is a small amount of localized effusion after liver resection, it may be related to ascites, and diuretics, such as furosemide, hydrochlorothiazide, etc., can be given under the guidance of the doctor, and appropriate nutrition and supplementation of human albumin can eliminate ascites. 2. If there is more fluid in the surgical area after liver resection, there may be biliary fistula, bile retention, etc., you can perform ultrasound-guided peritoneal puncture drainage under the guidance of the doctor to drain the local fluid out of the body, and at the same time pay attention to the prevention of infection, etc. (e.g., intravenous input of cefoperazone, etc.) treatment. Fluid accumulation after partial hepatectomy should be treated promptly under the guidance of doctors according to their own conditions to avoid adverse consequences.