Kidney Cyst Symptoms and Tea Treatment A cyst on the kidney means a sac-like formation, that is, a bubble filled with fluid. Cystic changes may be present in one or both beans. These are pathological cavities in the kidney tissue that are lined with epithelium. Cysts can be found both on the surface, that is, in the peripheral part of the kidney, and in its interior. It is most often a benign phenomenon, which is very common, especially in members of the stronger sex. Kidney
