Potential side effects of a tongue piercing include infection, disease transmission, extensive bleeding and nerve damage. Another possible side effect is endocarditis, which results when bacteria enter the bloodstream, and the heart or its valves become inflamed.
Further side effects may involve allergic reactions to metal. Gum disease is also possible, particularly with longer-stem piercings. Tooth issues may also occur because teeth might chip or crack after coming into contact with tongue piercings. Daily life may become harder because chewing and swallowing food present problems. Taste may change, and clear speech may be an issue. Drooling can result, and the tongue piercing presents a choking danger.