Strong echoes in the right posterior lobe of the liver may indicate the presence of calcification foci, bile duct stones or hemangioma in the liver. 1. Calcified foci in the liver: if there is calcified foci in the liver, it will show strong echo in liver ultrasound, and this calcified foci may be caused by abnormal calcium and phosphorus metabolism, trauma, inflammation, parasitic infection, tumor and so on. 2. Intrahepatic bile duct stones: Intrahepatic bile duct stones also have strong echoes and are usually accompanied by acoustic shadows. The formation of intrahepatic bile duct stones may be related to biliary tract infections, biliary parasites, cholestasis and other factors. 3. Intrahepatic hemangioma: patients may also have strong echoes during examination, and intrahepatic hemangioma is mainly related to congenital developmental abnormality and deformation of intrahepatic capillaries after infection. It is suggested that patients should consult professional doctors and combine with clinical symptoms to judge the specific situation.