Deafness

• conductive deafness or middle ear deafness

  is sometimes temporary. Diseases, infections, or tumorous bone growth can prevent the middle ear from transmitting sound waves properly to the cochlea.
• Nerve deafness, or inner-ear deafness

  results from damage to the cochlea, the hair cells, or the auditory nerve.
• Tinnitus (tin-EYE-tus) - is frequent or constant ringing in the ears.