What Are Tonsil Stones?

Tonsil stones, or tonsilloliths, are hard, sometimes painful bits of bacteria and debris that get stuck in nooks on your tonsils.

Your tonsils are gland-like structures in the back of your throat. You have one on each side. Tonsils are made of tissue with lymphocytes, cells that prevent and fight infections. Many experts think your tonsils play a role in your immune system and are meant to work like nets, trapping bacteria and viruses that come in through your throat.

But your tonsils don’t always do their job well. For some people, they’re more trouble than help. Research suggests that people who have their tonsils removed are no more likely to get bacterial or viral infections than people with who keep their tonsils.