Yup, the tongue can tell many a tale. Mine's got a trilogy to tell haha! Geographic, fissured, lie bumps, cankers.. I get them all, and have my entire life that I can remember.

My neurologist was a bit amazed at my mouth (I have extosis - probably spelling it wrong - as well, basically bone growth that's growing over the bone below my bottom row of teeth. My Dad has them on the inside of his bottom row. Mine are the rarer variety as far as I know!).

A white tongue can mean illness, so can a very shiny, red, smooth tongue. Many tales can be told by the tongue .