Hearing in the right ear is not as good as that in the left ear may be caused by cerumen impaction in the right ear, otitis media, perforation of the tympanic membrane, and sensorineural deafness. 1. Cerumen impaction: When cerumen completely blocks the external auditory canal, it will affect sound transmission, thus leading to hearing loss. 2. Otitis media: mainly manifested as ear pain, hearing loss, pus flow, etc. When there is fluid or pus accumulation in the middle ear cavity, it will cause hearing loss. 3. Tympanic membrane perforation: The perforation of the tympanic membrane may be caused by trauma or otitis media, which will cause hearing loss. 4. Sensorineural deafness: it may be caused by cochlear hair cell dysfunction, etc. The degree of hearing loss varies according to the degree of the lesion. Hearing in the right ear is not as good as the left ear, you should go to the hospital in time to identify the cause of targeted treatment.