Tonsillitis overview

Overview
Tonsillitis is an inflammation of the tonsils and will often, but not necessarily, cause a sore throat and fever.

There are 3 main types of tonsillitis: acute, subacute and chronic. Acute tonsillitis can either be bacterial or viral in origin. Subacute tonsillitis (which can last between 3 weeks and 3 months) is caused by the bacterium Actinomyces. Chronic tonsillitis, which can last for long periods if not treated, is almost always bacterial.