Renal cysts with calcification are generally not serious. Whether they are serious or not depends mainly on the size of the renal cyst, the presence of complications and the nature of the foci of calcification. 1. Renal cysts are most common in males, and the incidence gradually increases with age. When the cyst is small, it is usually asymptomatic. When the cyst is larger than 5cm and presses on the urinary tract or blood vessels leading to obstruction, appropriate treatment such as intracapsular injection of sclerosing agent or aspiration of the cyst should be carried out. 2. When the calcified foci are benign, they may be formed by calcium salt deposition after treatment of local inflammation or tuberculosis, which is generally harmless to human body and not serious. When the calcified foci are caused by cancer, the condition is more serious, and timely surgical treatment should be performed to remove the cyst and calcification. And the disease is easy to recur, and should be followed up regularly. When you find kidney cysts with partial calcification, it is recommended to consult a doctor in time for active treatment under the guidance of a physician.