Intrahepatic bile duct stones, depending on the duration and pathology, can present with various clinical manifestations. In the early stages, patients generally do not show obvious symptoms, with stones limited to a certain segment within the intrahepatic bile ducts. In later stages, stones can be found throughout the intra- and extrahepatic biliary system, and may even lead to biliary cirrhosis, liver atrophy, and liver abscesses. The clinical manifestations can include: first, pain in the upper abdomen; second, a long history of biliary tract diseases, with patients experiencing chills, fever, and jaundice; third, frequent pain and discomfort in the liver area on the affected side and the lower chest, which can radiate to the shoulder and back, etc.