Under normal circumstances, cerumen in the external ear canal does not need to be cleaned. The activity of chewing, talking, or opening the mouth through the temporomandibular joint can vibrate the anterior wall of the external ear canal, and through the activity of the anterior wall of the external ear canal, dry cerumen is discharged. If there is sticky cerumen in the ear canal, it will adhere tightly to the skin and not be easily discharged, so there is no need to remove it at this time if it does not affect hearing. If the cerumen affects the hearing, patients with tinnitus and hearing loss can go to a specialist hospital for cleaning. If the cerumen is not treated properly, infection of the external ear canal can occur.