First, my son did this years ago when he was severely constipated and his stomach was hurting him. Right away, make sure your son is getting enough water, and is having good, soft bowel movement every day. I would also make sure that he is checked by a doctor asap... things like a chronic ear infection could lead to this kind of behavior. If you haven't been able to do it yet, I would get him evaluated by a biomedical doc (you can search MAPS physician + your city) asap. IMO, something could be messed up metabolically. Good luck.

I was not criticizing in any way... Sorry that you took it that way.

My son does this as well, Head banging and slapping his face. Not really sure what causes it for him... I just read this and Katie, from a bystanders perspective, She did not act presumptuous... She even stated " I'm not saying this is your situation since I'm not there, this is what a behavior analysis would try to unpack for you. "

I have found myself (recently) looking over an entire conversation and taking away a part that I found offensive, sarcastic, etc... On MAT, actually... I guess I have been a little overwhelmed and sensitive lately... I honestly feel she meant no offense.

SIB is a complex behavior and we have struggled with this for many years. Yes, by all means, explore medical reasons on why this is happening. However it may not be medical. And its unlikely that you can determine the reason for the SIB by looking at other kids.

You badly need to hire a behavioral consultant to help you analyze his behavior and come up with plans... both proactive and reactive. I don't want to scare you, but extreme cases of SIB have resulted in permament damage. My son is blind in his right eye from repeated blows to his temple. He is no longer doing that but it was a hard road.

Neurotherapy was also key for my son. But again, until you get those tests, there's no way to know if that's the case with your child.

I am so so sorry that you are going thorough this. It is definitely the most difficult thing to deal with. Many autistic kids have meltdowns. But true SIB which your son is exhibiting is frightening and very difficult in every way. Please reach out to me if you want to discuss this some more.

Generally this is a stim and these change from time to time. Most of these activities are caused by frustration and irritation so if the child is uncomfortable they get worse. ABA would be helpful, and if the child is nonverbal then therapy to give him the ability to communicate would be good to. You will find that if your child is unable to communicate their needs and feelings they will act out. You need to try to find the trigger as to why this is happening wether it is medical or not. If you know what it is and you can avoid it that would be your best bet.

I would also have the doctor run some tests to see if there are any allergies or medical issues as well so you know what you are dealing with. Secondary conditions are common in ASD children so you might have something going on. If you have not already have early intervention work with your child if you have not contacted them already I would do it, they can help find out what the issue is.