I hear frequently from parents who are trying to toilet train that the child is having some success. Namely, parents will say the child has learned how to pee on the potty, and has no wet accidents.

Q: Potty training advice needed: Our son just turned 3. He's great with peeing, except he still wears diapers for sleeping. We are struggling with pooping. He knows he's supposed to go in the potty.

Some toddlers find learning to pass stool without a diaper challenging. They may have had a large or painful bowel movement previously and be afraid to defecate again, so they begin withholding stool, ...

"Stool toileting refusal" is quite common—here's how you can get past it. Rachel Fairbank is a freelance science writer based in Texas. When she is not writing, she can be found spending time with her ...