Tongue piercing and splitting can have serious health repercussions.

Tongue piercing can seem cool, but can have lots of effects on your health. While this may impair eating and speech, it may also cause infections in your tongue and jaw due to the huge amounts of bacteria found in your mouth.  After piercing there is an increased possibility of developing endocarditis (inflammation of the cardiac tissue) because the bacteria can enter the bloodstream at the site of piercing and colonize in the heart tissues.  The inflammation from the piercing may also cause suffocation due to swelling in the tongue.  Due to factors such as playing with the piercing in your mouth and similar actions, it can also cause chipping, loose, or even lost teeth. A similar situation occurs with tongue splitting, a body modification where the tongue is split to create a forked tongue.