How can tonsil stones be recognized?

Just look: With the right light and a goo mirror, tonsil "stones" can be seen by opening your mouth and looking in the mirror. They are usually whitish nodules that fill little pits - "crypts" - in the surface of the tonsil.

Tonsil stones: Tonsil stones are known by a variety of different names. One medical term is tonsillolith. Another is tonsil calculus. Essentially these are yellow or white solid material that occurs in the natural pits or crypts in the tonsils. They are very different from pus, because they are not liquid. They can range from soft to hard and they usually have a very putrid odor.