Reasons for hearing loss include ear malformations, fluid in the ear, allergies, benign tumors and ear infections, claims the Hearing Loss Association of America. Other causes include a perforated eardrum, otosclerosis and poor Eustachian tube function.
As of 2015, 36 million Americans suffer from hearing loss. Symptoms of hearing loss include asking others to repeat themselves, having trouble following multiperson conversations and tinnitus, according to WebMD. Having a hard time deciphering high-pitched sounds is also a symptom.
There are three types of hearing loss, says the Hearing Loss Association of America. These are conductive hearing loss, sensorineural hearing loss and mixed hearing loss.