These are round pouches of fluid found/formed in the kidney. These cyst are generally noncancerous ad rarely cause complications. But they can be associated with disorders that lead to kidney failure. We can’t compare them with the cyst that form a genetic condition called polycystic kidney disease.Its cause is not yet known to the scientists and is more commonly found in older people. In some cases they lead to pain, infection and bleeding. Computerized tomography (CT) scans, ultrasound and MRI scan can be used for the detection of cysts. Treatments for simple kidney cysts include draining the cyst using a long needle or surgical removal of the cyst.