âº A donor is also someone who gives blood or who agrees to give an organ or body part to help someone else. (Definition of âdonorâ from the Cambridge Academic Content Dictionary Â© Cambridge University Press)
Middle ear and outer ear infections are common causes of sharp ear pain. An infection of the inner ear, formally called labyrinthitus, may cause sharp pain as well as a loss of balance. People with a bad cold or the flu often experience sharp ear pain.
Ear pain occurs when the Eustachian tube that runs from the middle ear to the back of the throat gets blocked. The Eustachian tube drains the fluids that is produced in the middle ear, so when it is blocked the fluid builds up, leading to pressure on the eardrum and the consequent pain.