My son was three in June. He's been toilet trained for peeing since last fall, and pooped in the toilet for a few weeks. Then ... he stopped pooping in the toilet. It was about the time that I had to return to the US (we live in the Caribbean) for a week for dental work and didn't take Skyler with me. But we have no idea it that was a factor. All we know is that he started refusing to use the toilet and pooped in his underwear. Early this spring, we got him to tell ask us for pullups when he needs to poop, but nothing we try has yet induced him to use the toilet or a potty we let him pick out. Our pediatrician said to come up with a reward so big he can't refuse. Our most recent attempt was to promise him a large toy airplane for one poop in the toilet and a plane trip for 5 (he absolutely loves planes and flying). He clearly understands the reward and will articulate that he gets the reward if he poops in the toilet or potty and gets nothing if he poops in pullups, but still opts for the pullups. When I ask why he doesn't poop in the toilet, he says he doesn't want to. Any suggestions? I'm thinking about starting to withhold privileges or something ... or just laying off for a while. Anyone out there have a solution??? Many thanks!!!