When can you finally stop changing diapers—or nappies, depending on where you live? There is no universal deadline. Your child’s readiness matters more than the calendar, and staying dry at night is a separate milestone.
Changing a newborn’s diaper is almost cute
You handle this tiny person carefully, protect their brand-new skin and discover meconium. It sounds radioactive. Thankfully, it isn’t.
Then solid food arrives. Unlike a good wine, the contents of a diaper do not improve with age. And diapers are not entirely leakproof: “How did it get up to your neck?” Once the person on the changing mat can provide live commentary, you are entitled to wonder when this particular chapter ends.
Some families begin helping babies eliminate without diapers in infancy; others use diapers well into the preschool years. Those experiences do not describe the same kind of independence. Catching a baby’s signals is different from a child recognising a full bladder, getting to the toilet and managing their clothes.
Under 12 months: parents learning the signals
What is often called elimination communication involves noticing when a baby is about to pee or poop and offering a suitable receptacle. Some families use a sound as a cue. It requires availability, observation and a willingness to deal with the occasional miss.
This is not a baby independently using the toilet. The adult does most of the organising. Using fewer diapers can mean buying and throwing away fewer of them, but the practical workload depends on your family. It is an option, not a requirement or a race other parents have secretly won.
Between 12 and 18 months: prepare without a deadline
Once a toddler learns to walk, sitting still on a potty may look like a poor use of their new superpower. That does not make this age a forbidden zone, nor does walking automatically mean they are ready.
You can introduce the potty, explain what it is for and use simple words for bodily sensations. Letting your child see ordinary bathroom routines can help. Your last private room in the house may, however, become a demonstration space.
Keep the invitation relaxed. A child who does not want to sit can try again another time. The goal is familiarity, not an impressive performance for visiting grandparents.
From around 18 months: watch the child, not the stopwatch
The American Academy of Pediatrics describes early signs of bladder and bowel control around 18–24 months, while starting between two and three years is common in the United States. These are broad reference points, not deadlines. Its guidance emphasises readiness: noticing bodily signals, understanding simple instructions, managing clothing with help and being willing to try.
A calm period helps. Moving house, illness or the arrival of a sibling can make another big change harder. There is no prize for attempting all the family’s milestones in the same week.
In the original article, Patrice described a positive personal experience with Jamie Glowacki’s book Oh Crap! Potty Training. That is a parent’s experience, not evidence that one method suits every child. Choose an approach you can use calmly and consistently.
Three things your child is learning
- Recognising and responding to bodily signals. Noticing what is happening comes before reliably acting on it.
- Changing a familiar habit. A diaper has been part of life from the beginning. Underwear and a potty are new territory.
- Managing the practical steps. Getting there, lowering clothes, sitting securely, wiping with help and washing hands all take practice.
Accidents are information, not misbehaviour. Avoid punishment or humiliation. Offer help with cleaning up and another chance next time. If using the potty turns into a daily battle, pause and seek advice when needed.
Older than 30 months and not started?
Your child has not missed a magic window. Instead of comparing them with a cousin, look at what they can do and what makes the process difficult. A nursery or school deadline may create pressure for adults; it does not instantly create readiness in a child.
Discuss persistent difficulties, painful bowel movements, withholding, constipation or loss of previously acquired skills with a healthcare professional. The aim is to understand the obstacle, not to attach a label of “late” to your child.
And at night?
Being dry during the day does not automatically mean being dry while asleep. Keep daytime learning and nighttime expectations separate. A nighttime diaper does not cancel daytime progress. If wetting worries you, ask your child’s clinician for advice appropriate to their age and situation.
You are allowed to look forward to retiring the changing mat. Just leave your child some room to learn before organising the farewell party.
