There is no such thing as the most feared nemesis of kidney crystals. When kidney crystals exist, water intake should be ensured, intake of fresh fruits and vegetables should be increased, and intake of high purine foods should be reduced. Treatment should also be directed at the primary cause. Kidney crystals are usually associated with prolonged urinary retention, low water intake, eating too many foods high in purines, and foods containing too much oxalate. Patients are advised to increase water intake and ensure daily water intake to promote urine excretion. And supplement fresh fruits and vegetables to promote the body’s metabolism. At the same time, should avoid the intake of beer, seafood and other high purine food, as well as spinach and other food containing too much oxalate, to reduce the formation of kidney crystals. It is recommended that patients with kidney crystals actively consult regular hospitals, cooperate with doctors to improve relevant examinations, make a clear diagnosis, and take therapeutic measures when necessary.