ABSTRACT
Acute cholecystitis and acute cholangitis are common acute abdomen in biliary surgery. The morbidity of acute cholecystitis is high, and abdominal ultrasound has become the first choice for imaging examination. Disease assessment and severity grading are used to guide the formulation of treatment plan. Early laparoscopic cholecystectomy is the first choice for mild acute cholecystitis. Supportive treatment should be used in patients with severe acute cholecystitis to improve symptoms for elective cholecystectomy. For patients with severe cholecystitis who can not tolerate the risk of surgery and have no effect on conservative treatment, gallbladder drainage should be performed in time. Acute cholangitis is an acute disease with high mortality. Magnetic resonance cholangiopancreatography is an important imaging examination. The treatment principle of acute cholangitis is early biliary decompression, antibiotic application and general supportive treatment. The common methods of biliary decompression include percutaneous transhepatic cholangiography drainage, endoscopic duodenal papillary bile duct drainage, endoscopic ultrasound-guided biliary drainage, and surgical placement of T-tube drainage.