The spongy kidney is a congenital developmental abnormality, but it also has a certain genetic predisposition, which means that it is possible to inherit it, but not all of them. The full name of spongy kidney is called medullary spongy kidney, and by its name, you may be able to know the location of the lesion. It is mainly located in the medullary part of the kidney, which is the part of the kidney near the middle. The tubules in this area are cystically dilated, forming cysts, and stones are formed within the cysts, and the cysts and stones are more numerous, often in a radioactive arrangement. This disease is usually asymptomatic, but there are recurrent stones and infections, and patients without symptoms do not need treatment. If there is a urinary tract infection, antibiotic anti-infection treatment can be given. Patients who have formed kidney stones should be careful to drink more water, above 2000ml per day, to flush the urinary tract and prevent further stone enlargement and the formation of new stones.