I am in the same boat with my 3 1/2 year old son. It wouldn't be so bad, but he poops his pants sometimes 3 times a day. I am at my wits end! When we started potty training he picked it right up and then had an accident about a month later and it has been downhill ever since. This has been going on since December. He will be fine for a few weeks and then back to pooping his pants. He has no problem with peeing. I know he can do it which is why it is so frustrating! I have tried rewards, sticker charts, M & M's, you name it! I have him back in pull-ups all day now because I am sick of cleaning poop off of the underpants. I guess for now I am going to lay off and maybe take some others advice and make him clean up after himself. We'll see how it goes. Best of luck to you. let me know how you make out.