any children who happily do a wee in the potty suddenly refuse to poo. They may ask for a nappy, hold in their poo or become upset when it's time to go.

While this can be frustrating, it's usually a sign that something is making your child feel worried or uncomfortable. Understanding what's behind the behaviour can help you respond in a way that builds confidence rather than adding pressure.

In this guide, we'll explain why children may refuse to poo in the potty, how constipation can affect potty training and simple ways to help your child feel more comfortable using the potty or toilet.

 

Why Won't My Child Poo in the Potty?

There are several reasons why a child won't poo in the potty. For many children, it's linked to fear rather than stubbornness.

If your child has experienced constipation before, they may worry that pooing will hurt. Even one painful bowel movement can make them anxious about using the potty again. Other children feel unsure about the sensation of pooing somewhere new, while some simply don't want to stop playing when they feel the urge to go.

When a child is holding in poo, it's known as stool withholding. The longer poo stays in the bowel, the larger, harder and more uncomfortable it becomes to pass. This creates a vicious cycle where children continue to avoid the potty because they expect it to hurt, which ultimately leads to constipation.

 

How do I Know if my Child is Constipated?

Constipation in toddlers isn't always obvious and many parents don't realise it's affecting their child's potty training.

Some of the most common signs of constipation include:

• Going several days without a bowel movement.

• Hard, dry or unusually large stools.

• Pain or straining when pooing.

• Small amounts of blood after passing a hard poo.

• Loose or watery poo caused by overflow around a blockage.

 

If you think your child may be constipated, speak to your GP or health visitor for advice.

 

How to Help My Child Poo in the Potty

 

Adjusting Their Diet

If potty training constipation is making pooing painful, keeping it soft is one of the most important steps.

Encourage your child to drink plenty of water throughout the day and include a variety of fibre-rich foods in their diet. Fruit, vegetables, wholegrains, oats, beans and pulses can all help support healthy digestion. Limiting highly processed foods may also help if constipation is becoming a regular problem.

 

Create a Relaxed Toilet Routine

Encourage your child to sit on the potty or toilet for five to ten minutes after meals, when the body's natural urge to poo is strongest.

If they're using the toilet, support their feet with a step stool so their knees sit slightly higher than their hips. Feeling secure and well supported can make it easier to relax the muscles needed when pooing.

Keep toilet time calm and pressure-free. Reading a favourite story, singing together or blowing bubbles can help your child relax and create positive associations with using the potty.

 

Talk About Poo Without Pressure

Children often worry about things they don't fully understand. Talking openly about bowel movements can help make it feel less frightening.

Read age-appropriate books about going to the toilet, explain that everybody poos and answer any questions your child has in a simple, reassuring way. If they're worried about poo hurting, acknowledge their feelings and explain that you're working together to make it easier.

Try to have these conversations when your child is calm, rather than during a stressful trip to the toilet.

 

Keep Potty Training Positive

If your child won't poo on the potty, try to avoid pressure or punishment. Asking repeatedly, showing frustration or comparing your child to others can increase their worries and make them even more reluctant to go.

Instead, praise your child's efforts, even if they only sit on the potty for a few minutes. Building confidence takes time, and positive experiences will help your child feel more comfortable as they learn.

 

Navigating potty training challenges takes time, especially when fear or constipation is involved. The most important thing is to remove the pressure and focus on making your child feel comfortable. By keeping their diet rich in fibre, establishing a calm routine and talking openly about their worries, you can help break the cycle of stool withholding. With patience and consistency, your child will learn to feel safe using the potty.

 

FAQs

Why might my child refuse to poo in the potty even if they wee without problems?

It’s usually about fear or discomfort rather than stubbornness. A previous painful bowel movement (often from constipation) can make a child worry that pooing will hurt again. Others feel unsure about the new sensation of using a potty or don’t want to stop playing when they feel the urge. These worries can lead to avoiding the potty.

What is stool withholding and why does it make things harder?

Stool withholding is when a child resists the urge to poo. The longer stool stays in the bowel, the larger and harder it becomes, making it more uncomfortable to pass and reinforcing their fear. This cycle can also cause occasional loose or watery stool that leaks around the blockage.

How can I tell if my toddler is constipated?

Constipation is not always obvious. Common signs include going several days without a bowel movement, passing hard, dry, or unusually large stools, visible pain or straining, small amounts of blood after a hard stool, and loose or watery stool in their underwear. If you think your child may be constipated, speak to your GP or health visitor for advice.