My sons 4 asd I've posted on here about him with holding his stools before, I have not potty trained him because of this,but today im going for it! I'm hoping if we can even get wees on the potty or toilet then it's better than nothing. He won't sit on the toilet or potty but I'm hoping after a few days of staying in the house in pants we will see some attempts to sit on! Wish me luck!