Published by: National Institute on Aging
Causes of hearing loss
Loud noise is one of the most common causes of hearing loss. Noise from lawnmowers, snow blowers, or loud music can damage the inner ear and result in permanent hearing loss. Loud noise also contributes to tinnitus. You can prevent most noise-related hearing loss by turning down the sound on your devices, moving away from loud noise, or using earplugs or other ear protection.
Earwax or fluid buildup can also cause hearing loss by blocking sounds that are carried from the eardrum to the inner ear. If wax blockage is a problem, your doctor may suggest mild treatments to soften earwax.
A ruptured eardrum can also cause hearing loss. The eardrum can be damaged by infection, pressure, or putting objects in the ear, including cotton-tipped swabs. See your doctor if you have ear pain or fluid draining from an ear.
Health conditions common in older people, such as diabetes or high blood pressure, can contribute to hearing loss. Ear infections caused by viruses and bacteria (also known as otitis media), a heart condition, stroke, brain injury, or a tumor may also affect your hearing.
Hearing loss can also result from taking certain medications that can damage the inner ear, sometimes permanently. These medications may be used to treat serious infections, cancer, or heart disease. They also include some antibiotics and even aspirin at some dosages. If you notice a problem while taking a medication, check with your doctor.
Genetic variations can cause hearing loss as well. Not all inherited forms of hearing loss are evident at birth. Some forms can show up later in life. For example, otosclerosis, which is thought to be a hereditary disease, involves the abnormal growth of bone that prevents structures within the ear from working properly.