What Is Tonsillitis?
Tonsillitis (pronounced: tahn-suh-LYE-tus) is an inflammation of the tonsils, usually caused by an infection by viruses or bacteria.
Tonsils are lumps of tissue on both sides of the back of the throat that help the immune system protect the body from infections. But sometimes infections are too much for the tonsils to handle, and these fighters of infection become infected themselves.