Clinical Question about Toileting

I am looking for suggestions and resources with regards to supporting a boy with ASD, about 8 years old, who continues to struggle with BM accidents (roughly once a week) in his underwear. He is fully toilet trained otherwise. His family and myself are unclear whether he is not feeling the cues that he needs to go to the bathroom or if he is choosing to go in his underwear occasionally. Most of the time he successfully has BM’s in the toilet. When he has an accident his mom will find him hiding in his room.  He is also quite disturbed about wiping himself afterwards and refuses to do so. Cognitively, he knows that pee and poo go in the toilet, it is not due to a lack of understanding or anything communication wise.

Thanks in advance for any ideas/suggestions!

kpopowich@leadfoundation.ca