Complex biliary obstruction can be treated with surgical treatment, interventional treatment, etc. You can choose the appropriate treatment to relieve the obstruction according to your condition. Biliary obstruction is usually caused by blockage of bile duct stones or bile duct lesions, which leads to obstruction of bile emptying or even complete blockage of bile ducts, causing biliary obstruction. 1. Surgery: If the obstruction is caused by tumor, bile duct stone and other diseases, surgery can be performed as soon as possible under the guidance of doctor to relieve the obstruction. For example, pancreaticoduodenectomy and bile-intestinal anastomosis are feasible for malignant tumors, and choledochotomy and endoscopic retrograde cholangiopancreatography for stones are feasible. 2. Interventional therapy: if the patient is in the advanced stage of tumor or in poor physical condition and is not suitable for surgical treatment, the obstruction can be lifted by interventional stenting, such as endoscopic retrograde cholangiopancreatography stent implantation. When complicated biliary obstruction occurs, it is recommended to go to the Department of Hepatobiliary Surgery in time for further examination to clarify the cause of the disease, and carry out timely and standardized treatment under the guidance of the doctor, so as to avoid delaying the condition.