The effectiveness of hepatocellular carcinoma intervention is determined by the blood supply characteristics of hepatocellular carcinoma. Normally, the liver is supplied with blood by hepatic artery and portal vein, of which portal vein supply accounts for 75% to 80% and hepatic artery supply accounts for 20% to 25%. The blood supply of hepatocellular carcinoma is exactly the opposite, with more than 90% to 95% being supplied by the hepatic artery and very little by the portal vein. This brings convenience to the treatment. Through hepatic artery cannulation, drugs can directly enter liver cancer tissues to increase the local drug concentration and kill cancer cells. In addition, some embolic substances such as iodine oil and gelatin sponge are applied to embolize the blood supply artery of liver cancer to cut off its nutritional effect, and the tumor tissue will be necrosed, thus achieving the purpose of treatment. Embolization complications will occur after surgery, and the general treatment is as follows: 1. Postoperative puncture site care After surgery, the puncture site doctor will compress the puncture site for 15 minutes to stop bleeding and apply pressure bandage to prevent subcutaneous hematoma and hematoma at the puncture site. 24 hours later, loose elastic tape and cover sterile gauze for 2-3 days to avoid wetting, absolute bed rest for 24h, the puncture limb in abducted and straightened position, and only after 24 hours can gradually leave the bed. The dressing of the puncture site should be closely observed, and the patrol should be strengthened. None of the patients in this group showed any bleeding 24 hours after the operation. 2. Care of abdominal pain Pain in the right upper abdominal hepatic area can occur after hepatocellular carcinoma intervention, which usually appears 1 to 3 days after surgery and can be relieved by itself in 3 to 5 days. The degree of pain is related to the extent of embolization and may also be related to the blood supply of the swelling. Another reason is due to the stimulation of liver envelope or peritoneum after embolization. The drug produces high concentration and high efficiency killing effect in the tumor tissue, and the local edema and necrosis of liver tissue or ectopic artery embolization cause abdominal pain. Closely observe the location, nature and degree of pain of abdominal pain, and explain to the patient well to enhance psychological tolerance. Those with mild pain can be treated without special treatment, while those with moderate to severe pain can be treated with pain relief drugs. 3.Care of fever Patients with hepatocellular carcinoma have low immunity and the use of chemotherapeutic drugs suppresses hematopoietic function, which may cause local or systemic infection. Instruments should be strictly sterilized and sterile, and aseptic operation should be performed. If the body temperature is below 38.5℃, it will generally subside on its own in 5-7 days; if the body temperature fluctuates between 38℃ and 39.5℃, medication and physical cooling should be given for several days to prevent deficiency due to heavy sweating and encourage patients to drink more water. 4. Vomiting. The doctor will prescribe a little anti-vomiting medicine to deal with.