Introduction
It's one of those questions every parent asks sooner or later: what age should I start potty training my baby? And more importantly, how can I support them without pressure, without regression, and without turning this learning process into a source of stress for the whole family? This article draws on recommendations from the French Society of Pediatrics (SFP) and data from developmental medicine to provide you with clear, concrete, and well-founded answers.
1. What science says: the age of toilet training
The French Society of Pediatrics states unequivocally that children acquire control of their sphincters between 24 and 48 months. The necessary neurological and muscular maturity varies significantly from one child to another.
Three physiological conditions must be met:
1. Physiological maturity: feeling bladder or rectal pressure. The necessary nervous system is only mature from around 15-18 months.
2. Cognitive maturity: understanding the link between the sensation and the action to be performed.
3. Emotional maturity: being in an emotional state secure enough to accept this new constraint.
Starting too early does not save time. A study by NJ Blum (Journal of Developmental & Behavioral Pediatrics) involving 378 children demonstrated this: the age of acquisition is not correlated with the early start of training — it is correlated with the child's maturity.
2. Signs that indicate your baby is ready
- Stays dry for 1 to 2 hours at a time
- Tells you after they have peed or pooped
- Imitates adults or other children using the toilet
- Shows curiosity about the potty or toilet
- Can partially undress themselves
- Walks steadily
Most children show these signs between 18 and 30 months. Daytime dryness is generally acquired within 2 to 6 weeks once the child is truly ready. Nighttime dryness typically follows about 6 months after daytime dryness.
3. Choosing the right potty: the criteria that matter
Stability: The potty must remain stable when the child sits down, pushes, and stands up.
Comfort: The rim should be rounded and the seating surface wide enough.
Adaptability: A 3-in-1 potty like our Treelys Evolving Baby Potty supports the child for several years — as a standalone potty, then a toilet reducer with a soft removable cushion, then a non-slip step stool: 3-in-1 evolving baby potty
Absence of harmful substances: BPA-free, phthalate-free, CE, REACH, and ASTM F963 certified.
4. Practical steps for training
Phase 1 — Familiarization: Introduce the potty as an ordinary household item. Let your child sit on it dressed, play near it. The goal is for the potty to become familiar and non-threatening.
Phase 2 — First sessions: Offer the potty at regular times (waking up, after meals, before bath). Do not leave the child on the potty for more than 3-5 minutes.
Phase 3 — Underwear: Transition to underwear during waking hours at home. Accidents are inevitable — never punish. Simply say: next time, you'll try to go on the potty.
Phase 4 — Transition to the real toilet: Introduce the toilet reducer. The step stool is essential for the child to climb on their own and place their feet flat (the pressure of the feet on the floor helps with abdominal pushing).
5. What you should never do
- Punish or scold after an accident
- Compare to other children (normal variability is 24 to 48 months)
- Force the child to stay on the potty
- Start during a period of change (moving, new baby, starting daycare)
- Give up too quickly during a regression
6. Consistency between home and daycare
If your child attends daycare or is with a childminder, coordinate the approach with the professionals. Consistency between the two environments (same words, same attitude, same schedule) significantly speeds up acquisition.
Conclusion
Potty training happens when the child is ready. Your role is to create favorable conditions — a suitable and comfortable potty: 3-in-1 evolving baby potty, a benevolent attitude, a predictable routine. About Treelys: our approach
