The reason why children have white spots on their nails and grind their teeth during sleep is firstly considered to be caused by physiological factors, such as psychological factors and abnormal dental occlusion, etc. Pathological factors include lack of calcium or intestinal parasitic infections, etc., which need to be promptly investigated for the cause of symptomatic treatment. 1. Physiological factors: due to the child’s psychological stress, prolonged emotional instability, poor rest, etc., affecting the normal metabolism and sleep structure, showing the above symptoms; may also be due to the child’s dental occlusion function abnormalities. 2. Pathological factors: due to the lack of calcium for a long time, which interferes with the function of the dental nerve; at the same time, intestinal parasitic infections, especially roundworm infections, may cause the above symptoms, which is related to the interference of parasitic toxins with the function of the nervous system. Parents are advised to take good care of their children by ensuring balanced nutritional intake, regular rest and relaxation, and good lifestyle habits, etc., which can help reduce the incidence of these symptoms. If the symptoms are severe or if they persist and do not improve, it is important to consult a hospital for appropriate treatment.