Biliary atresia needs to be treated without delay. Biliary atresia is a congenital disease, the exact cause of which is still unclear, and is only seen in infants. It is caused by the occlusion of the bile ducts, which prevents bile from being transported from the liver to the gallbladder normally, causing cholestasis, which further leads to liver damage, and the child may suffer from persistent jaundice, whitish clay-like stools, and itchy skin. Biliary atresia requires timely treatment, mainly surgical treatment, such as hepatic hilar bile duct jejunostomy, and some children may need liver transplantation. Without timely and effective treatment, biliary atresia will progressively worsen, leading to liver damage and ultimately to cirrhosis and liver failure, which can be life-threatening.