Cutting oneself is something that has come into being among the worldly during my lifetime. Not surprisingly, it generally seems to go along with immorality. It is inspired by that being who is jealous of our bodies, for as Joseph Smith taught “the devil has no body and herein lies his punishment”
There is common sense which says cutting oneself for amusement is disgusting and wrong. But I am amazed at what can be found in the scriptures.
Deuteronomy 14:1 1 Ye are the children of the Lord your God: ye shall not cut yourselves