Toddler constipation: signs, what helps at home and when to see a doctor

HealthHub says your toddler may be constipated if they poo 2 or fewer times a week, or pass small, hard stools that hurt to push out. Most toddler constipation eases at home with more water and fibre plus a relaxed toilet routine after meals. NUH says improvement may take several weeks, so stick with it. See a doctor if there's blood in the poo or a swollen tummy with vomiting, or if your child hasn't pooed for more than 4 days.

How to help toddler constipation at home, step by step

1. Look for the signs HealthHub lists, like 2 or fewer poos a week, or small, hard stools that hurt to pass.
2. Offer water through the day; a KKH dietitian puts fluid needs at ages 1 to 3 at about 90ml per kg of body weight, or roughly 1,260ml for a 14kg toddler, with milk and soup counted.
3. Add a fibre food to every meal, like wholegrain crackers, fruit or beans (HealthHub). Build up slowly, as HealthHub says too much fibre too fast can bring gas and bloating.
4. Cut back if milk fills most of the day, since NUH counts milk and cheese among foods that constipate and RCH Melbourne suggests at most 500ml of cow's milk a day after 18 months.
5. Set a toilet time after each meal, starting from around 2 to 3 years as NUH suggests, with 3 to 5 minutes of sitting as RCH Melbourne advises.
6. Put a foot stool under your child's feet, because NUH advises sitting with the knees raised and the NHS says feet should rest flat on the floor or a step.
7. Get your child moving every day; HealthHub says regular physical activity helps keep bowel movements regular.
8. Praise your child for sitting on the toilet whether or not a poo comes, as the NHS advises, and stay calm about soiling, which HealthHub says should never be punished.
9. Share the plan with everyone who looks after your child, including the preschool teacher, so drinks and toilet breaks happen there too.
10. Ask your child's doctor before giving a laxative or using a suppository, as NUH advises.

What counts as constipation in a toddler

Normal varies a lot between children. NUH says some poo only once every 2 to 4 days, while HealthHub says most kids poo at least once a day by age 2. A change from your child's usual pattern tells you more than any count, and NUH calls a child constipated when that pattern slows down noticeably.

The NHS says your child may be constipated if they've had fewer than 3 poos in the past week, or if their poo is large and hard and they strain or hurt when they go. NICE, the UK body that writes guidelines for doctors, says two or more such findings point to constipation, and your doctor is the one who confirms it.

Soiling can also be a sign. In a child over 1, runny poo can leak out around a hard lump of poo; the NHS calls this overflow soiling and says your child isn't doing it on purpose.

Babies under 1 have a different normal, and our baby poop guide explains how to tell constipation from normal infrequent poo in babies.

Why toddlers get constipated

NUH says constipation is rarely caused by disease, and the usual causes are everyday ones:

• Low fibre or fluid hardens stools, HealthHub says, and constipation often starts when children move from milk to solid food.
• Many children hold on: HealthHub says a child may not want to stop playing or may fear another painful poo, and the NHS says the more they hold back, the more constipated they get.
• The NHS lists feeling pressured or interrupted during potty training as a cause, and our potty training readiness guide helps you pick a good time to start.
• A change of routine can do it, such as travel or a new school (HealthHub), or school toilets your child doesn't like (RCH Melbourne).
• A small tear called an anal fissure makes pooing hurt, NUH says, which can lead to more holding on.
• Iron supplements and illness that leads to dehydration are on NUH's list as well.

Rarer medical causes include thyroid and nerve problems, HealthHub says, and the red flags further down tell you when to have your child checked.

What to watch for and what helps, by age

Fibre foods and drinks your family already has

A KKH dietitian writing for HealthXchange says a child needs their age in years plus 5g of fibre a day, which works out to about 11g for a 6-year-old. The upper limit is age plus 10g, and the dietitian says this matters most for young children and poor eaters.

Fibre comes from fruit, vegetables, beans, lentils and wholegrains. Here are ideas from KKH and HealthHub that fit most Singapore kitchens:

• Mix brown rice into white rice half and half, or alternate the two from meal to meal (HealthHub).
• Stir vegetables into fried rice or noodles, or chop them into meatballs and patties (KKH).
• Serve fruit as dessert after meals, with the skins left on where you can (KKH, HealthHub).
• Swap white bread for wholemeal, and add rolled oats, peas or beans (HealthHub).

Milk and soup count towards fluids, and so do barley water and chrysanthemum tea, the KKH dietitian says. A water bottle in the preschool bag lets your child keep sipping while they're there.

RCH Melbourne says prune juice works for some children. For a picky eater, start with our fussy eater guide, since the KKH dietitian notes that fibre intake is often low in fussy eaters.

If the doctor suggests a laxative

The NHS says laxatives are often used for children who eat solid food, alongside changes to diet and routine. Your doctor chooses which one and how much. Pharmacies sell them over the counter, but RCH Melbourne says children shouldn't take them without medical advice.

Expect it to be slow. The NHS says treatment can take several months to work and soiling may get worse before it gets better, and a GP may keep your child on it for a while so poo stays soft. Carry on until the doctor says to stop, and keep the toilet routine going alongside it.

When to see a doctor

See your GP or a polyclinic doctor if you notice any of these:

• Your child's general health, appetite or activity seems affected (HealthHub).
• You see blood in the poo (HealthHub), or poo that is white, red or black (RCH Melbourne).
• No poo for more than 4 days, or no poo after 24 hours of trying the home steps (HealthHub).
• Your child begins to soil their underwear, which HealthHub lists as a reason to go.
• A baby younger than 4 months with constipation (HealthHub).
• Constipation that started at birth or in the first few weeks of life, or a child who isn't growing well (NICE).
• Severe pain when pooing, which NUH says can mean a small tear called an anal fissure.

If your child has severe tummy pain, or a swollen tummy with vomiting, go to KKH Children's Emergency or NUH Children's Emergency the same day. HealthHub lists both, along with leg weakness, as reasons to see a doctor. For trouble breathing, a seizure or a child you can't wake, call 995, which SCDF keeps for life-threatening emergencies.

Sudden runny poo with vomiting after a meal is a different problem, covered in our guide to food poisoning in children. For other everyday bugs, see common childhood illnesses in Singapore. To find a children's doctor near you, use our paediatrician map.

Frequently asked questions

How long can a toddler go without pooping?

It depends on what's normal for your child, since NUH says some children go only every 2 to 4 days. HealthHub's advice is to see a doctor after more than 4 days without a poo, and sooner if your child is in pain or seems unwell.

Where can I get help for toddler constipation in Singapore?

Start with your GP or a polyclinic doctor, who can check your child and decide whether a laxative is needed. For severe tummy pain or a swollen tummy with vomiting, go to KKH or NUH Children's Emergency. It helps to bring a note of how often your child poos and what it looks like.

Does milk cause constipation in toddlers?

It can, when milk takes up most of the day. NUH counts milk and cheese among constipating foods, and RCH Melbourne suggests no more than 500ml of cow's milk a day after 18 months, which also helps appetite at meals.

Can I buy a laxative for my toddler from the pharmacy?

Pharmacies sell them, but RCH Melbourne says children shouldn't take laxatives without medical advice, and NUH says to check with your child's doctor first. The doctor decides the type and amount, and how long your child stays on it.

Why does my constipated toddler poo in their pants?

This is usually overflow soiling, where runny poo leaks out around a hard lump of poo, which the NHS says can happen in children over 1. Your child can't help it, so stay calm and book a doctor's visit, because HealthHub lists new soiling as a reason to go.

Is toddler constipation in Singapore linked to potty training?

Often, yes. The NHS says constipation is common during potty training at around 2 to 3 years, and one painful poo can start a habit of holding on. Go at your child's pace with our potty training readiness guide, and when you're ready to drop night nappies, see our night-time potty training guide.