We all have had that morning whiff of our own damned breath. It is the only scent that is capable of killing the sleepy self. Imagine the same smell following you around day and night and haunting your social life too.
It happens to many of us, I am talking 25% of people on Earth, to be precise. One in every four of us is a victim of these tonsil stones. Most important of all, this condition is not harmful and can be completely avoided very easily only if we know as much as how it is caused.
Tonsil Stones have nothing to do with tonsils, only that they develop and hide behind them. They are the accumulated mass of Sulfur producing bacteria and debris. The pocket-like cavity behind the tonsils provides safe house for them to develop.
They pose no problem except bad breath and thus are never suspected to be present. They are mostly small enough to not be seen by naked eye, also their position is such that personal inspection is very hard.
Proper brushing and use of oxygenated mouthwash and dental floss. That is all you need to do to prevent them. Even removing them is no rocket science. Just like ears, a clean cotton swab can be used, only moisten it beforehand and then gently massage it out.
That is how big they can get, even bigger. Although it is best that the doctors be consulted if regular occurrence is observed.