What is sudden hearing loss?
Sudden hearing loss can be either a conductive hearing loss or a sensorineural hearing loss, depending on which parts of the ear are affected.
It may affect one or both ears.
It can happen instantly or (despite the word 'sudden') over the course of a few weeks. Your hearing may recover, but you may be left with permanent hearing loss.
You must seek urgent help if you think you have sudden hearing loss.