Noise-induced hearing loss is 100 percent preventable. You can protect your hearing by paying attention to noises above 85 decibels in loudness, which can damage your ears. These include lawnmowers, snowblowers, motorcycles, firecrackers, and loud music. Lower the volume on portable stereos and televisions. When you are involved in a loud activity, wear earplugs or [...]

Not all inherited forms of hearing loss take place at birth, however. Some forms can show up later in life. In otosclerosis, which is thought to be a hereditary disease, an abnormal growth of bone prevents structures within the ear from working properly. Source: National Institute on Deafness and Other Communication Disorders

Hearing loss can result from taking certain medications. “Ototoxic” medicines damage the inner ear, sometimes permanently. Some antibiotics are ototoxic. Even aspirin can cause problems, but only temporarily. Check with your doctor if you notice a problem while taking a medication. Source: National Institute on Deafness and Other Communication Disorders, National Institutes of Health