Patients with intrahepatic bile duct stones can be detected via ultrasound examination, where the stones are clearly visible, especially for those with larger stones. These patients may also experience recurrent right upper abdominal pain, nausea, and vomiting. For patients with intrahepatic bile duct stones who exhibit significant symptoms, it is advisable to undergo surgical treatment as soon as possible. Only by surgically opening the bile duct and removing the stones can a cure be achieved. However, if the stones are relatively small and asymptomatic, they might not be detected during an ultrasound examination, and no special treatment is required at that time. If small gallstones are observed, it is recommended to regularly recheck with an ultrasound to monitor changes in size.