Otitis media in infants is a relatively common condition, which may be related to improper feeding, upper respiratory tract infections, excessive cleaning and so on. 1. Improper feeding: There are many improper operations in the process of feeding infants and young children, which may lead to otitis media in infants and young children, such as improper feeding posture, infants often choke on milk, milk into the ear canal. 2. Upper respiratory tract infections: If the infant is infected with upper respiratory tract diseases, there are too many bacteria and viruses in the rhinitis department, and the pathogens may also enter the ear. Once the upper respiratory tract infection, the middle ear is more likely to be invaded by the secretions of the nasopharyngeal cavity, triggering otitis media. In addition, children’s lymphatic tissue adenoids hypertrophy, easy to press the pharyngeal port of the Eustachian tube, resulting in blockage of the Eustachian tube and cause otitis media. 3. Excessive cleaning: parents in the cleaning of the external auditory canal to infants and young children, pay attention to the strength, can not be excessive cleaning, in the baby’s ear into the water, timely cleanup, gently wipe, so as to avoid water into the ear canal and thus infected ear. Parents are advised to take their babies to the regular hospital as soon as possible to find out the cause, so as not to delay treatment.