Your kidneys remove waste and fluid from your blood to make urine (pee). Sometimes, when you have too much waste and not enough fluid in your blood, these wastes can build up and stick together in your kidneys. These clumps of waste are called kidney stones. Usually, your kidneys remove waste from your blood to make urine (pee). When there is too much waste in your blood and your body is not producing enough urine, crystals begin to form in your kidneys. For more details please contact us! 9811459842.