I posted about this before in child health but got no replies so I thought I would try here
My 4 yr old DS4 started to bite his nails a couple of months ago. This then progressed to fingertip and knuckle biting causing them to bleed. I can't think of anything that would have caused him heightened anxiety. He is the youngest of 4 DSs, 2 of whom are ASD, and live in a busy, chaotic house.
I can't use "Stop n Grow" as it cannot be used on broken skin and he just spits it out and carries on biting
He is a very active, demanding child who is still soiling himself (but that's another story).
If anyone has any ideas why he is doing it to extremes and how to stop, it would be most appreciated.
Thanks.