Some experts suggest that a child planning on getting a tattoo or body piercing is a warning sign of a child on the brink of trouble. If you hear that your daughter is considering body art, make sure she understands the potential risks: infections, scar tissue and draining wounds for piercings; and allergic reactions or diseases such as hepatitis and AIDS from instruments used for tattoos. Even the trendy temporary henna tattoos can result in months of pain and discomfort, and a lifelong allergy to a common chemical found in the dyes. Tongue piercing can cause swelling that closes off the airway; choking risks from loose jewelry; uncontrollable bleeding and nerve damage; or chipped or cracked teeth. If you do this, make sure the procedure is performed with sterile equipment by a certified professional whose shop is clean, much like a medical facility.