House training
What causes potty training regression?
Last updated 23 September 2026 · How we write and check this
Short answer
Regression usually follows a specific change: a new home, a new pet, a shift in schedule, teething discomfort, or too much unsupervised freedom given too soon. In a dog who was previously trained without any obvious trigger, it is also worth ruling out a physical cause such as a urinary infection, since the symptoms can look identical from the outside.
The common behavioral triggers
Households often notice regression lining up almost exactly with a household disruption, a move, a new baby, a returning college student, or even rearranged furniture, since dogs are sensitive to changes in their environment in ways that are not always obvious to people. Loosening supervision too quickly after early success is another common cause, since it removes the structure that was preventing accidents in the first place.
Responding to regression effectively
Go back to a tighter version of the original schedule for 1 to 2 weeks rather than assuming the dog will work it out alone, and identify the specific trigger if possible so you can ease the transition, whether that means more one on one time or a calmer introduction to a new pet.
Key takeaways
- Regression usually follows a specific trigger, such as a move, a new pet, or a schedule change.
- Loosening supervision too soon after early success is a common, avoidable cause of regression.
- A tighter schedule for 1 to 2 weeks, paired with identifying the trigger, usually restores progress.