There are two sorts of deafness. In one type, sounds do not reach the inner ear. This could be caused by a blockage in the outer ear, such as a build-up of wax, or by an infection in the middle ear that stops the three bones from working properly. In the second type of deafness, sounds reach the inner ear, but no electrical signals are sent to the brain. Noise damage to the cochlea can cause such deafness.
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RAJAN SHARMA
There are two sorts of deafness. In one type, sounds do not reach the inner ear. This could be caused by a blockage in the outer ear, such as a build-up of wax, or by an infection in the middle ear that stops the three bones from working properly. In the second type of deafness, sounds reach the inner ear, but no electrical signals are sent to the brain. Noise damage to the cochlea can cause such deafness.