Nosebleeds in infants are mostly caused by various reasons that lead to too much dryness of the nasal mucosa in infants and children. The capillaries in the nasal cavity of infants and children are relatively rich and the capillaries are relatively brittle, so when the temperature is relatively high and the humidity is relatively low, or when parents overdress their infants or cover them too much when they sleep, it can cause the infants to be hot and dry and cause the nasal mucosa to dry out, so when they are gently touched, they easily bleed. In this case, adults must pay attention to the appropriate adjustment of the child, usually do not wear too much, do not let the child in a very hot state. If a child has recurrent nasal bleeding, it is recommended to visit a hospital to rule out the possibility of organic nasal disease.