For intrahepatic bile duct stones, the smaller stones can be discharged with Paishi decoction, and the larger stones need to be crushed with an extracorporeal lithotriptor before drinking Paishi decoction, or they can be directly treated with minimally invasive surgery. It is suggested that B-ultrasound should be used to diagnose the size and carry out effective treatment. According to the size of the stone, surgery, lithotripsy and drug treatment can be performed. Does the patient have a bitter mouth and his diet is affected?