Regression
Potty training regression: why it happens and what to do
Regression is very common: a third of parents see it. The usual reasons are change or stress, being too busy to stop playing, constipation, or sometimes a bladder infection.
What to do this week
- Rule out the physical first: pain, burning, fever, hard poops or extra thirst mean a call to your pediatrician.
- Look for a trigger: a new sibling, move, new daycare, illness, or simply a busy new phase of play.
- Go back to basics for a week or two: sits at transitions, calm accident routine, praise for every catch.
What to say
“Accidents happen. Let's get you dry and try the potty again later.”
Try not to say
“You know how to do this. You're doing it on purpose.”
When to call your pediatrician
- Pain or burning when peeing, or peeing very often
- Fever, smelly or cloudy pee
- Very thirsty, peeing a lot, tired or losing weight
- Constipation, or poop leaks in underwear
- Accidents after 6 months or more of being dry, with no obvious reason
More guides
- Getting startedSigns your toddler is ready for potty trainingRead the guide
- Getting startedWhat's the best age to start potty training?Read the guide
- First daysHow many accidents are normal in the first week of potty training?Read the guide
- First days3-day potty training not working? What to do on day 3Read the guide
Last reviewed October 26, 2026. Based on public guidance from the American Academy of Pediatrics (HealthyChildren.org) and the NHS. This is general information, not medical advice. If you're worried about your child's health, talk to your pediatrician.