What causes "lie bumps" in the mouth?

Question

What causes "lie bumps" in the mouth?

Answer 1

The name "lie bumps" is a result of a myth stating that telling a lie would cause one.[3] Lie bumps are often attributed to irritation of the tongue's papillae (taste buds) by sharp food or teeth.[3] However, very little has been written about this condition in scientific articles or textbooks and scientific studies have failed to produce a definite cause.[1] Possible causes include: "stress, gastrointestinal upset, menstruation, acidic or sour food, and local trauma" (direct physical irritation) of the tongue.[1]