Well , it is a pagan practice tattoo your body , but that doesn't mean it's a sin.
In my opinion , a real christian cares about the body by believing that the body it's the temple of the soul , of the spirit. So by the way you cann't hurt yourself because you want . When you give your life to Jesus Christ , you are giving all to Him . If you want the other people to know your are christian , or you want to prove Jesus Christ how much you love Him , then act like a good christian , everyone is going to notice you. [/img]