The difference between kidney crystals and kidney stones lies in the different formation periods, different ultrasound images and different treatment methods. 1. Different formation periods: both are formed by inorganic salts in the urine, but kidney crystals are the early form of kidney stones, and kidney crystals will accumulate more and more, thus forming kidney stones. 2. Ultrasound images are different: kidney crystals appear as scattered light spots on the ultrasound image, with no acoustic shadows, but kidney stones appear as strong echogenic light clusters on it, and are also accompanied by obvious acoustic shadows. 3. Disease treatment is also different: kidney crystallization patients do not need special treatment, only need to drink a lot of water, can promote the discharge of crystals, but kidney stones generally need to perform extracorporeal shock wave lithotripsy serious cases even need to surgical removal of stones. Once patients find themselves with kidney crystals, they must be examined and treated in time to avoid further development of crystals and formation of kidney stones, which will aggravate their condition.