1. Character traits, generally on the introverted side. 2. Activities on the low side, too much pampering by the family, too little outdoor activities in general. 2. Improper feeding, malnutrition, most of them have the phenomenon of sweating. 3. Lack of trace elements. There is a general lack of zinc, iron deficiency, a few calcium deficiency. 4, improper care, improper clothing, either more or less. 5, neuropsychiatric factors, a sudden change in the environment, small children can not accept for a moment, the mood can not be stabilized, a nursery school, contact are new, a variety of different people and things, there are worried, afraid of the mind. The unfamiliar environment, do not adapt to the cry, and so on. Malnutrition and improper care are the primary factors, and neuropsychological factors and environmental changes are the triggers for the occurrence of the disease. Measures Enhance nutritional feeding and proper nursing care to help children’s physical health. Strengthening psychological counseling and outdoor activities to improve children’s adaptation to the external environment will help children’s physical and mental health.