Potty training works best as one short, focused stretch: seven days at home, your child in regular cotton underwear from the first morning, and one sentence doing the heavy lifting — you tell me when you need to go. Most children are reliably dry in the daytime by the end of that week. Nights come later, and that is normal.

This page is the whole method in one place: how to tell your child is ready, what the week looks like day by day, what to do when it goes wrong, and where the honest limits are. It is the same program we have taught since 2018, used by more than fifty thousand families across five countries.

Is your child ready?

Readiness is not an age, it is a set of signals. Most children show them somewhere between two and three and a half, and a child who shows them at two years and two months is more ready than a cousin who is three and shows none.

• They stay dry for an hour or two at a stretch, and sometimes wake up dry.
• They notice a wet or dirty diaper and say something about it.
• They can pull pants down and back up, roughly, with a little help.
• They can follow a two-step instruction: go to the bathroom and sit down.
• They show interest in the toilet, or in what the rest of the family does there.

Three or four of those is enough. Waiting for all five is how a child ends up in diapers at four. The American Academy of Pediatrics keeps a useful readiness checklist on HealthyChildren.org, and if you want the longer version of this question we wrote a separate piece on when to start potty training.

What to have ready before day one

Get everything together before you start, because the one thing you cannot do on day two is go shopping. A potty for the first few days, a toilet seat reducer and a step stool for the switch to the toilet, at least fifteen pairs of cotton underwear, something to protect the mattress and the couch, a handful of small rewards, and pull-ups for sleeping. Clear your calendar for the week: this method asks for your attention, not your money.

Regular cotton underwear, not training pants. That is deliberate. A training pant absorbs, and a child who cannot feel that they are wet has nothing to learn from. Cotton tells them immediately, and that feeling is the lesson.

The sentence the whole method rests on

Most programs have the parent decide when the child sits: every twenty minutes, after every drink, on a timer. This one does the opposite. From the first morning you say, in your own words, “you tell me when you need to go.” Then you wait, and you let your child do the noticing.

It feels slower on day one and it is the reason the result holds. A child trained on your timer learns to sit when told; a child trained on their own signal learns to recognize a full bladder, which is the skill they still need at preschool when nobody is watching the clock.

There are three standing exceptions, during the week and long after it: before and after sleeping, and before you leave the house. Those you offer, every time, without waiting to be told.

The seven days, day by day

Day 1: diapers off, underwear on

Start in the morning. Diaper off, cotton underwear on, and tell your child what is happening: no more diapers during the day, and they get to say when they need to go. Stay home. Offer plenty to drink, and give the drink in one go rather than sips across the afternoon — that is the only way to see how long it takes from drinking to needing to go. Expect accidents today. React calmly, change together, carry on.

Day 2: you start to see the pattern

Write down what happens: what time they drank, what time they sat, whether anything came, and whether it was a success or an accident. By the end of the day you will see roughly how long your child’s body takes, and that tells you when to be nearby rather than when to interrupt.

Day 3: the first successes stack up

Successes usually come in a run on day three. Reward them immediately and visibly: a sticker on a card, and a small reward when the card is full. The cards start at three squares, then five, then seven, then nine, so a reward comes quickly at first and gets rarer as the habit takes over. That build is the mechanism, not the stickers.

Day 4 and 5: the hard part

Ask any parent who has done this and they will tell you the middle is the low point. Your child is tired of being asked, the novelty has worn off, and resistance shows up right when you expected progress. See the section below: this is the day to say less, not more.

Day 6: short outings

Once the successes outnumber the accidents at home, go out for half an hour. Before you leave, offer the toilet — one of the three standing exceptions. Bring a change of clothes and keep the first trips short and boring. A successful trip to the mailbox is worth more than an ambitious afternoon at the zoo.

Day 7: the toilet, and the certificate

Most children move from the potty to the toilet with a seat reducer and a step stool around now, and the potty quietly disappears. End the week deliberately: your child has done something difficult, and marking it — a certificate, a small celebration, a call to grandparents — is part of the method rather than decoration.

Day 4 and 5 are the hardest, not day 2

This surprises most parents, and it trips up the ones expecting a rough start and smooth sailing. The first days are new and your child is interested. By day four the questions have worn thin, and a child who has been asked “do you need to go?” fifty times will start saying no on principle.

The fix is counterintuitive: ask less. Hand the responsibility back. Say it once in the morning, keep the three standing moments, and otherwise let the accidents teach what the reminders were trying to teach. Parents who push harder on day four usually add a week; parents who back off usually get day six for free.

Accidents, and what not to do

Accidents are data, not failure. A child who has an accident at eleven and a success at one has learned something in between. What breaks the week is the parent’s reaction: shame, a raised voice, or a diaper put back on at the first bad hour. Going back to diapers mid-week teaches exactly the wrong thing, which is that this is optional.

Clean up together, matter of fact, and say what you want to happen next time. If your child holds on and refuses to go at all, that is worth attention: see our piece on whether it is normal for a 2 or 3 year old not to be potty trained, and read the section below on when to call your pediatrician.

What about nights?

Night dryness is a different skill on a different timeline, and it arrives when your child’s body is ready, not when your week ends. Pull-ups at night are fine during the training week and for a long time after. Plenty of children are dry in the day months or years before they are dry at night, and bedwetting up to about age six is common and not a sign that anything went wrong.

When to talk to your pediatrician

This program is a method for teaching a skill, not medical advice, and there are things it should not be used for. Call your pediatrician if your child is constipated or holds their stool for days, if there is pain when they pee or repeated urinary tract infections, if they were dry for months and suddenly are not, or if bedwetting continues past about age six. For bedwetting in particular, the National Institute of Diabetes and Digestive and Kidney Diseases explains what is normal at each age, and your pediatrician is the first place to ask.

How this compares with the methods you have read about

Method	What it asks of you	Where it struggles
Three-day intensive	Diapers off, home for three days straight	Fast but front-loaded; three days is often not enough and the plan has no room for that
Timed sits (10-10-10 and similar)	You decide when your child sits, by the clock	Teaches sitting on cue rather than noticing a full bladder
Child-led, no timeline	Wait until your child asks	Gentle, but can run for months and stall at preschool deadlines
This seven-day program	One focused week, your child gives the signal	Needs a clear week at home; day four asks for patience

We wrote these out honestly elsewhere: the best potty training method compared, what the 3-day rule really means, and an honest look at the 10-10-10 rule. If you are weighing up whether to pay for a program at all, we answered that one too: is a paid potty training program worth it.

Frequently asked questions

How long does potty training take?

Most children are reliably dry in the daytime within a week when the week is given properly: at home, in cotton underwear, with the child giving the signal. Some manage it in three days, others need two to three weeks. Night dryness comes separately and later.

What age should I start potty training?

Most families land between two and three and a half. Readiness signals matter more than the number: staying dry for a couple of hours, noticing a dirty diaper, pulling pants down, following a two-step instruction.

Should I use training pants?

No, not during the day. Training pants absorb, and a child who cannot feel that they are wet has nothing to learn from. Regular cotton underwear during the day, pull-ups for sleeping.

How often should I put my child on the toilet?

You do not, as a rule. Your child tells you. The exceptions are before and after sleeping and before leaving the house, and those stay in place long after the training week.

What do I do about accidents?

Stay calm, clean up together, and say what should happen next time. Do not put a diaper back on during the day and do not make your child feel ashamed. Accidents are part of how the skill is learned.

My child refuses to poop on the toilet. Now what?

This is common and usually about control and a little fear, not defiance. Keep the routine, let them sit clothed at first if that helps, and never make it a battle. If your child holds it for days or it is painful, speak to your pediatrician.

Is this program available as a course?

Yes. The seven days are taught as forty short videos grouped per day, with the full handbook included as a PDF and a digital AI coach for the questions that come up at eleven at night on day four.

Written by Dustin van de Sande, father of three and the founder of Potty Training Box. Reviewed by a pediatric physical therapist, a pelvic floor physical therapist and urotherapists at a hospital bladder and bowel clinic. Written with AI assistance and reviewed before publication.