My son, 32, has a herniated belly button, he is under doctor s watch for this, but on his back a little higher then his waistline right in the middle there is a patch of bruising. about one inch thick and runs horizontal for about three inches either side of his spine. It also hurts, could this be related to the hernia, he keeps forgetting to ask. Had the bruising problem for several years. Comes and goes but is very painful, motions to put on his socks, tie his shoes is very painful.