What conditions can affect both hearing and balance?

• Ménière's disease -  This disease causes dizziness and/or vertigo attacks, accompanied by tinnitus and hearing loss.
• Acoustic neuroma - These benign, slow-growing tumors grow on the vestibulocochlear nerve, causing hearing loss, tinnitus, and vertigo.
• Ototoxic drugs - Many medications, including antibiotics, chemo drugs, and aspirin, can potentially cause damage to hearing and balance systems.  
• Prolonged noise exposure - You are probably aware that loud noises harm hearing. Studies suggest that exposure to loud noise also damages cells within the vestibular system. 
• Aging - Balance issues are prevalent among older adults. A much-cited study in the Journal of Vestibular Research found that 35% of adults (age 40+) in the United States experience balance dysfunction. And, of course, the same is true for hearing. One-third of adults over age 65 have age-related hearing loss.
• Infections - Cytomegalovirus (CMV), Epstein-Barr virus, or meningitis can also cause a loss of balance and hearing functions. 
• Genetic mutations - The sensory organs in our inner ear, vestibular and auditory, have a common embryonic origin, so a single gene mutation may disrupt the development of both sensory systems.