My 4 year old has been fully toilet trained and in pants since just before he turned 3. He had the occasional accident but rarely. The last couple of months however he's been having accidents a lot, sometimes twice a day at nursery and always says it's because he was too busy playing. He has done it at home too but less so. Always wee accidents. They've gone from happening very rarely, once a month ish to happening multiple times a week. This morning he's pooed himself in his pants and just keeps saying it was an accident.
He's fine in himself, he's a clever boy and has no additional needs and when I'm googling it's saying about regression in kids with autism which doesn't really fit him. I'm at a bit of a loss because both the skills and understanding are there so I don't know how to stop it?