As per the medical science, doctors classify hearing loss in two broad categories. Conductive hearing loss Sensorineural hearing loss Conductive hearing loss occurs when outer ear and middle ear are not able to conduct sound waves to the inner ear. In contrast, sensorineural hearing loss occurs when the inner ear malfunctions and is unable to convert sounds conducted to it into electrical impulses and send them on to the brain for processing and ‘making us hear’.
However, what happens when hearing loss is partially conductive and partially sensorineural? When that happens, we call it mixed hearing loss. The extent of hearing loss can be scientifically measured in an audiology lab. Depending on how bad it is, doctors grade it as either mild or moderate or severe.