Dr Khoo, Head of Department of Paediatrics, shares that one of the most common challenges parents face is recognising what constipation truly looks like in children, especially when they’re unsure what is “normal,” when to worry, and whether it can cause long-term harm. A frequent misconception he encounters is the belief that “my child is pooping every day” means the child isn’t constipated. In reality, constipation is defined by the quality of the stool and the difficulty of passing it, not just frequency. A child who passes a large, hard, painful stool once a day is constipated, while a child who passes a soft, small stool three times a week is not. Parents often focus on frequency and miss key signs such as straining, pain, or very large, log-like stools.

Many families also wonder about the “right” frequency for their child’s bowel movements, and Dr Khoo, explains that this naturally changes as children grow. In the first week of life, babies often have four or more soft or liquid stools a day. Over the first three months, patterns vary widely; some babies continue to go multiple times daily, while others may go only once a week. By age 2, most children settle into at least one soft but formed stool per day, though healthy variation remains. Some children go after every meal, while others go every other day.

This leads many parents to question how they can tell when constipation is genuinely present. The clearer indicators are changes in a child’s usual pattern, or stools becoming significantly harder, larger, or more difficult to pass. Pain and distress often tell the story more accurately than frequency alone.

Another misconception is that increasing fibre alone will solve constipation. While fibre matters, chronic constipation is often functional, driven by a cycle of pain, stool withholding, and eventual overflow rather than diet alone. Serious complications are uncommon, but untreated chronic constipation can lead to faecal impaction, encopresis (overflow soiling), anal fissures, and psychological distress such as anxiety, shame, or social difficulty. The biggest long-term concern is the chronic pattern and the emotional toll it places on both the child and family.

When constipation becomes chronic, children often begin withholding stool to avoid pain. Breaking this cycle is essential for prevention. This usually begins with an initial “reset” of the rectum. In severe or longstanding cases, this involves clearing the impaction, the large, hard stool that is stuck. This is typically done using a time-limited, high dose of an osmotic laxative such as polyethylene glycol (PEG), under medical supervision.

Once the impaction is cleared, the focus shifts to maintenance. A child often needs a daily, consistent dose of a laxative such as PEG or lactulose for at least two to four months, and sometimes longer. Keeping stools soft allows painless passage and gives the overstretched rectum time to return to normal. However, medication alone is not enough. Long-term success depends on combining it with lifestyle changes.

This includes the “3 F’s”: Fibre from fruits, vegetables, and whole grains, Fluids with an emphasis on water, and daily Fitness or physical activity. Behavioural training also plays an essential role. Encouraging a predictable toilet routine, such as sitting on the toilet for a few minutes after meals when digestive reflexes are strongest, helps children relearn comfortable, regular bowel habits and reduces the chance of constipation becoming a recurring issue.

Many parents assume constipation is caused only by not eating enough fibre, but in children the picture is often more complex. While diet plays a role, chronic constipation is usually functional, meaning it stems from less obvious behavioural, developmental, or medical factors.

One of the most common underlying issues is stool withholding. Beyond the physical discomfort, there are often psychological and developmental triggers that contribute to this pattern. Stress or anxiety during big life transitions, such as starting a new school, welcoming a new sibling, or experiencing pressure during toilet training, can lead children to hold back stools. During the toilet training phase, withholding can also become a power struggle or a way for a child to feel a sense of control.

From a developmental perspective, certain diet transitions in infancy, such as switching formulas or starting solids, can temporarily lead to harder stools. These phases are usually short-lived but can still trigger withholding if the child associates bowel movements with discomfort.

There are also medical factors that, although less common, should be considered. An anal fissure must always be ruled out, as pain from a small tear can cause a child to avoid passing stool. Medications such as iron supplements, certain cold medicines, and pain relievers may also slow the gut and contribute to constipation. In rare cases, paediatricians will assess for more serious conditions such as Hirschsprung disease, coeliac disease, or hypothyroidism, which require specific medical management.

Dr Khoo explains that when it comes to constipation, many parents underestimate how much toilet habits influence a child’s ability to pass stool comfortably. A healthy toilet routine aims to help a child reconnect the feeling of needing to go with a successful, painless bowel movement, which is essential for breaking the cycle of withholding.

One of the most effective tools is scheduled, non-negotiable toilet time. This takes advantage of the body’s natural gastrocolic reflex, which makes the colon contract shortly after eating. The ideal routine is to have a child sit on the toilet or potty two to three times a day for about five to ten minutes, ideally five to thirty minutes after meals. Breakfast and dinner tend to work best. This timing increases the likelihood of an easy, involuntary bowel movement.

The positioning during toilet time also matters. A proper squat-like posture helps the muscles around the rectum relax. A simple guide is the 90-90-90 rule: feet flat on the floor or on a stool, knees at a 90-degree angle and slightly higher than the hips, and the back straight. A footstool or Squatty Potty is helpful for most children because it straightens the exit angle and makes passing stool easier.

Dr Khoo emphasises that positive reinforcement is critical. The routine must stay calm, supportive, and stress-free. Parents should avoid scolding after accidents or unsuccessful attempts. At home, simple reward systems, such as sticker charts, should reward the act of sitting during the scheduled time, not just producing a bowel movement. This reduces performance pressure and helps children relax. Allowing them to read a book or play a quiet game during toilet sits can make the experience more predictable and pleasant.

Outside the home, many children avoid toilets because of embarrassment, noise, smell, or lack of privacy. Acknowledging these concerns helps build trust. If a child is on a laxative regimen, it should keep stools soft enough for them to respond to the urge comfortably. Communicating with the school nurse or teacher ensures the child can access the restroom quickly and discreetly without worrying about missing class.

Ultimately, healthy routines teach children to respond to the urge before it becomes overwhelming, preventing withholding and reducing the chance of constipation recurring.

While most routine constipation can be managed at home with diet adjustments and short-term use of osmotic laxatives, there are clear red-flag signs that should prompt parents to seek medical help right away.

The first major warning sign is blood in the stool. Although this is often due to a small anal fissure from straining, it can occasionally indicate something more serious such as inflammatory bowel disease, so it always requires medical review.

Significant abdominal pain, especially if it starts suddenly or is located in one particular area, is another concern. This type of pain is not typical of simple constipation and could signal a blockage, appendicitis, or even a concurrent urinary tract infection.

Vomiting, particularly if the vomit is bile-stained and green, is a serious symptom that strongly suggests a bowel obstruction and needs immediate assessment.

Parents should also be alert when constipation appears alongside broader health issues. Poor weight gain, faltering growth, or unexplained weight loss aren’t caused by constipation alone and point toward an underlying systemic condition.

Changes in the shape of the stool can also be important. Stools that are consistently ribbon-like or pencil-thin may suggest an anatomical issue or a narrowing in the colon that requires investigation.

For newborns and very young infants, an absence of stools is a critical red flag. Failure to pass the first stool (meconium) within the first 48 hours of life requires urgent evaluation to rule out conditions such as Hirschsprung disease.

Lastly, any constipation accompanied by changes in motor function, such as leg weakness, altered gait, or reduced sensation, should be treated as a medical emergency because these symptoms may indicate a spinal cord problem. If parents are ever unsure, it’s always safer to seek medical attention promptly.

Dr Khoo notes that while obesity and nutrition are widely discussed, constipation remains significantly under-addressed despite being one of the most common childhood health issues. He believes the first step is to destigmatise bowel habits. Talking about poop should be as normal as discussing sleep or diet. Every paediatric well-child visit should routinely include a simple “poop check”, asking about stool consistency, frequency, and whether passing stool is painful or difficult. Tools like the Bristol Stool Chart can help families describe stool types more confidently.

The second shift needed is a stronger focus on prevention rather than cure. Dr Khoo highlights that parents should be educated early, even before toilet training begins, about the roles of fibre, fluids, and a low-pressure, positive toilet-training experience. Basic digestive concepts, such as the importance of hydration or the problems caused by withholding, should become part of everyday family conversations.

He also emphasises the importance of a whole-child approach to gut health. Chronic constipation is often misunderstood as simply a “fibre problem”, but many cases involve the gut-brain axis. For children with stubborn or severe constipation, especially those with encopresis, a holistic approach works best. This may involve paediatricians, gastroenterologists, and child psychologists or behavioural specialists to address both the physical and psychological components, such as fear, anxiety, or withholding behaviours.

Finally, public perception around laxatives needs to change. Safe agents like PEG are often feared by parents who believe they are habit-forming. In reality, long-term maintenance with a softening agent is both safe and necessary for many children. It keeps stool soft while the overstretched rectum heals and helps break the withholding cycle. This is not about dependence but about giving the child’s body the time it needs to recover and return to healthy bowel habits.