In the early stages of liver cancer, there are usually no noticeable changes in complexion, because the tumor is relatively small at this stage and does not compress the local bile ducts or liver tissue, nor does it cause significant damage to liver function. Therefore, the symptoms are mainly localized to the liver area, or there may be no obvious clinical symptoms at all. Some patients may only feel a dull pain in the liver area, while others may experience nausea, belching, or even diarrhea or poor appetite as clinical manifestations. Furthermore, early-stage liver cancer patients do not exhibit significant clinical symptoms. However, as the disease progresses and the tumor grows, it can compress the intrahepatic bile ducts, or even invade the hepatic bile duct system and other areas, causing damage to liver cells, leading to hepatocellular or obstructive jaundice. Clinically, patients may develop a yellowing of the skin, and some may develop pallor due to anemia caused by advanced disease changes.