 Contemporary body piercing practices emphasize the use of safe body piercing materials , frequently utilizing specialized tools developed for the purpose . Body piercing is an invasive procedure with some risks , including allergic reaction , infection , excessive scarring and unanticipated physical injuries , but such precautions as sanitary piercing procedures and careful aftercare are emphasized to minimize the likelihood of encountering serious problems . The healing time required for a body piercing may vary widely according to placement , from as little as a month for some genital piercings to as much as two full years for the navel . 
