Kidney crystals are still an early condition of kidney stones, closely related to dietary habits, should drink more water, more exercise, dilute the crystalline components can reduce the generation of stones. In addition, animal offal should also be eaten as little as possible, and appropriate diuretic food, such as watermelon, grapefruit, etc., can promote urine discharge and reduce the generation of crystals. In addition, we must pay attention to our daily life, try not to stay up late, do not drink milk before going to bed, and avoid the stimulation of alcohol and tobacco can reduce the generation of crystals. If crystals or stones are found, don’t be too nervous, most patients are asymptomatic, or review is the main focus, it is recommended to check once every six months to a year or so.