It is common to still have pain half a month after liver cancer surgery, which may be caused by surgical trauma, hepatobiliary system and other diseases. Pain symptoms can be relieved by medication and symptomatic treatment. 1. Pain caused by surgical trauma: due to traditional liver cancer surgery, which is more traumatic, patients may still have pain half a month after liver cancer surgery, which is a normal reaction after surgery, and pain relieving drugs such as ibuprofen, flurbiprofenate and other symptomatic analgesic treatments can be given. It should be noted that the above medicines should be used under the guidance of doctor, avoiding unauthorized use of medicines, so as to avoid adverse effects. 2. Pain caused by other diseases of liver and biliary system: if patients after liver cancer surgery have intrahepatic bile duct stones or gallbladder stones and other diseases, patients may also have pain in liver area half a month after operation. In this case, analgesic and antispasmodic treatments such as ibuprofen and scopolamine should be taken. 3. In addition, since the recurrence rate of liver cancer is high, it is suggested that patients need to pay attention to regular rechecking after operation to be alert to the possibility of recurrence. If patients still have pain half a month after liver cancer surgery, it is recommended to consult doctor in time, and under doctor’s guidance, improve relevant examination, clarify the cause of disease and standardize treatment.