Can gallstones be discharged by themselves?

Cholecystoliths may pass by themselves, but this is rare.

Cholecystoliths need to be treated medically, such as by oral medication, surgery, or endoscopic removal. If the stones are small and the cystic duct is wide, the stones may pass by themselves into the common bile duct and then into the intestine with bile, but this is rare. Moreover, even if the stone can be expelled by itself, it may cause complications such as biliary obstruction and cholangitis during the stone expulsion process, so waiting for the stone to be expelled by itself is not recommended.