The superstition about a person's ear ringing is that it means someone is talking about them. According to the superstition, if the left ear is ringing, someone the person knows is saying something good about them. If the right ear is ringing, someone is saying something bad about the person.
Ringing in the ears is a condition known as tinnitus. The noise can be intermittent or continuous, and can vary in loudness. Tinnitus affects an estimated 50 million adults in the United States. Tinnitus is usually caused by prolonged exposure to loud sound. It can also be caused by blockage of the ear due to a wax build-up or ear infection, certain drugs, natural aging and various other causes.