Does adenoid hypertrophy affect hearing or not? Most children with adenoidal hypertrophy do not have significant hearing loss. Some children with adenoids that are not particularly large may also experience hearing loss. The main thing to look for is how well the eustachian tube, which connects the ear to the nose, is functioning. If the child’s hearing loss is found to be conductive deafness (i.e., no problem with bone conduction, but hearing loss with air conduction), and the sound conduction test is a B-curve (i.e., a straight line), the child should consider a tympanic ventricular effusion, which is mainly related to pharyngeal canal dysfunction. The eustachian tube dysfunction may be related to sinusitis, adenoidal hypertrophy, cleft palate, etc. If the medication is conservative for 3 months and still not good, or the course of the disease may have been more than 3 months long, you can consider tympanotomy placement to drain the fluid from the tympanic chamber and restore the normal pressure of the tympanic chamber. This can improve hearing.