Hearing loss can happen to anyone. Today, more than 48 million Americans have some degree of hearing loss. There are three types of hearing loss: sensorineural, conductive and mixed hearing loss. While many elements can contribute to hearing loss, age and exposure to loud noise are the two most common. Signs of hearing loss include turning the TV volume up, difficulty hearing on the phone or asking people to repeat themselves. Luckily, hearing aids are a great treatment option for many.