The susceptibility of pediatric patients to otitis media is mainly related to the anatomical characteristics of the eustachian tube. Compared to adults, the eustachian tube in children is shorter in length and wider in width, and it is closer to the horizontal position. Once an upper respiratory tract infection occurs, pathogens can easily enter the middle ear through the eustachian tube and cause acute inflammation. This is especially true when breastfeeding an infant who is in an improper posture and has his or her body in a horizontal position, which can easily cause choking and coughing, and then milk can flow into the middle ear through the eustachian tube, which is a common cause of otitis media.