There are more reasons for ascites after liver cancer intervention, but they are usually related to hypoproteinemia, metastasis of cancer cells, liver function damage and so on. 1. Hypoproteinemia: some liver cancer patients have poor nutritional status after interventional therapy and are prone to nausea, vomiting and other symptoms, which cause hypoproteinemia and lead to the formation of ascites, so they need to supplement albumin in time. 2. Hepatocellular metastasis: interventional therapy for liver cancer is aimed at patients with poor surgical effect or unable to do surgery, and it is very likely for such patients to have metastatic spread of cancer cells after treatment, such as trans-abdominal metastasis, which will cause ascites. 3. Impairment of liver function: liver cancer patients have poor liver function, and interventional therapy may directly aggravate the impairment of liver function, which will cause ascites when the liver cannot metabolize normally. When ascites occurs after interventional therapy for liver cancer or due to other reasons, patients should pay attention to it and go to regular hospitals in time for targeted treatment under the guidance of professional doctors.