How do tonsils help fight diseases?

Tonsils are part of the immune system and help fight diseases by trapping and filtering out bacteria, viruses, and other pathogens that enter the body through the mouth and nose. They contain immune cells that produce antibodies and activate other immune responses to combat infections. By acting as a first line of defense, tonsils play a crucial role in preventing illnesses, particularly in young children. However, they can also become infected themselves, leading to conditions like tonsillitis.