If your ear drainage tubes aren't working properly, you may get a build-up of fluid trapped behind the eardrum. This condition, also called otitis media, is one of the most common causes of hearing loss in children.
It can be caused by:
Signs of fluid in the ear:
You should see your GP if the pain you experience is severe or your symptoms are persistent. You may need a course of antibiotics or, if you're suffering for many months, surgery may be needed, where small tubes (called grommets) are used to help the fluid drain.