It seems that tongue piercing is slowly becoming more popular than ever... and correspondingly, there seems to be even more tongue infections than ever before due to the piercing. If tongue piercing MUST happen, it is recommended that you avoid studs made of metal which increases the risk of infection, at least according to a recent study in the Journal of Adolescent Health . The study demonstrated that studs made of steel might promote the development of a bacterial biofilm leading to i…