Choledocho-duodenostomy is a surgical procedure that creates a direct connection between the common bile duct (choledocho) and the duodenum (the first part of the small intestine). This procedure is typically performed to bypass obstructions or strictures in the bile duct that prevent bile from flowing normally into the intestine.

During choledocho-duodenostomy, the surgeon makes an incision in the duodenum and another in the common bile duct near the obstruction. The two openings are then stitched together to create a new pathway for bile drainage, allowing it to bypass the blocked segment of the bile duct and enter the intestine directly. This helps relieve symptoms such as jaundice (yellowing of the skin and eyes), itching, and digestive issues caused by bile duct obstructions.