There are more pain manifestations of choledochal dilatation, mainly including right upper abdominal pain, abdominal mass, nausea and other symptoms. 1. Right upper abdominal pain: it is a typical symptom of choledochal dilatation, which is mainly caused by bile duct dilatation, resulting in pain caused by channel obstruction. 2. Abdominal mass: when choledochal dilatation is serious, you can touch a soft mass in the abdomen with your hand, and there is obvious pain when you touch it, and the location is relatively deep, which is not easy to notice, and you may find it when the pain is serious. 3. Nausea: Because bile duct obstruction may occur in some patients after choledochal dilatation, if the bile cannot be discharged in time, resulting in cholestasis, which may cause nausea, vomiting and other symptoms. Choledochal dilatation may have the above symptoms, in addition to jaundice, fever, etc., if there are similar abnormalities, it is recommended to consult a doctor in time, and through the doctor’s physical examination and diagnostic analysis of imaging, if necessary, need to do percutaneous hepatic perforation cholangiography.