Many potty-trained toddlers keep pooping in their pants even though they understand what to do. This is often a form of poop withholding — not defiance or laziness — and it’s one of the most common struggles parents reach out to me about.

Is your toddler fully potty trained at home but refuses to use the toilet anywhere else? Here’s why kids shut down in new bathrooms — and how to help them use the potty at daycare, preschool, or while traveling.