Most children are ready to start potty training somewhere between 18 and 30 months — but the range is wide, and readiness signs matter far more than a birthday. Starting when your child is genuinely ready usually means faster training with fewer tears for everyone.
Signs your child is ready
You don't need every sign on the list, but the more you recognize, the smoother the start tends to be:
- Longer dry stretches. The diaper stays dry for two hours or more, or through a nap. This shows the bladder can hold enough to make it to a potty.
- Awareness. They notice when they're going, pause mid-play, hide behind the couch, or tell you afterwards.
- Interest. They follow you to the bathroom, want to flush, or ask about the toilet.
- Discomfort with a dirty diaper. They tug at it or ask to be changed.
- Simple instructions land. They can follow two-step directions like "grab the book and sit down."
- Basic undressing. They can pull pants down and up with a little help.
Signs it's worth waiting
Starting too early doesn't cause harm, but it often just makes training take longer. Consider holding off a few weeks if your child is going through a big change — a new sibling, a house move, starting daycare — or if they actively resist sitting on the potty. Pushing through resistance tends to create a power struggle, and potty training is one contest a toddler can always win.
Age is a poor predictor
Some children train at 18 months, others closer to three years, and both are normal. Girls tend to train slightly earlier than boys on average, but the individual variation is much larger than the average difference. Comparing with siblings or daycare friends mostly adds pressure without adding information.
How Sprout helps you decide
Sprout includes a short readiness check when you add your child — a couple of minutes of questions covering the signs above, giving you a clear read on whether to start now or check back in a few weeks. And once you do start, logging each potty trip and accident teaches Sprout your child's natural rhythm, so you get a heads-up when the next trip is likely instead of guessing.