Dysfunctions of the biliary system include gallbladder and cystic duct dyskinesia, and sphincter of Oddi dyskinesia. 1. The clinical manifestations of gallbladder dyskinesia are very similar to those of gallbladder stones and are most common in middle-aged women. The main symptom is paroxysmal colicky pain in the epigastrium or right upper abdomen, with pain radiating to the back or subscapularis, which may be accompanied by nausea and vomiting in some patients, and is induced by eating greasy food, and often lasts for 2 to 3 hours. 2. Sphincter of Oddi dysfunction, like organic stenosis, can cause obstruction of biliary excretion and lead to biliary obstruction and pancreatitis. (1) Biliary obstruction type mainly manifests as abdominal pain, similar to that before cholecystectomy, the pain is located in the upper abdomen or right upper abdomen, accompanied by nausea and vomiting, which occurs about once every few weeks or months, and some of them show persistent abdominal pain, and a few of the patients have mild jaundice and abnormalities of liver function; (2) Patients with pancreatic type may show symptoms of pancreatitis, such as left upper abdominal pain, radiating pain to the lower back, and elevated blood amylase and lipase. Those who have the above symptoms should consult the doctor in time and be treated under the guidance of professional physicians to identify the symptoms.