Children do not want to eat, may be physiological or pathological factors, physiological factors such as eating too much food before meals; pathological factors such as calcium deficiency, zinc deficiency, in addition, some diseases such as the common cold, can also cause children’s lack of appetite. 1. Physiological factors: children do not develop good eating habits, there are picky eaters, snacks before meals and other habits, will not want to eat, in addition, may also be due to the weather is too hot and other factors, the appearance of poor appetite. 2. Pathological factors: (1) Calcium deficiency: when children are deficient in calcium, there will be a decrease in appetite, and there can be an increase in nervous system excitability and irritability, if calcium deficiency is serious, it can also cause bone development abnormalities, and there will be a delay in height development, square skull and other changes. (2) Zinc deficiency: Commonly found in infants and young children under 2 years of age, zinc deficiency can also lead to loss of appetite, in addition, there can be a decline in body resistance and recurrent infections, mouth ulcers, slow growth and other symptoms. (3) Disease: Especially acute upper respiratory tract infections caused by viruses or bacteria, such as the common cold, will affect the child’s appetite, so that he or she does not want to eat, often accompanied by other symptoms, such as coughing, fever, malaise and so on. Children do not want to eat, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.