Fecal incontinence in children, often called encopresis once a child is past the age of typical toilet training, is far more common than most parents realize. Roughly 4% of children aged five to six experience it, with the rate dropping to about 1.6% by ages eleven to twelve. In the vast majority of cases, the underlying culprit is chronic constipation that leads to overflow soiling, not a willful behavioral problem or a sign of laziness. Understanding the distinction matters because treatment depends entirely on correctly identifying what is driving the soiling, and many families endure months of frustration before getting appropriate help.
How Common It Is and Who It Affects
A multicultural prevalence study found encopresis in about 4.1% of five- and six-year-olds and 1.6% of eleven- and twelve-year-olds, with rates declining as children get older.1PubMed. The prevalence of encopresis in a multicultural population Boys are affected more often than girls, sometimes by a ratio of three to one or higher. One case series found that all twenty children in the study had secondary encopresis, meaning they had already achieved bowel control (on average around age four) before symptoms appeared, typically after age five.2PubMed Central. Encopresis in Children: A Report of 20 Cases That pattern is common: most children with fecal incontinence were once fully toilet-trained and then began soiling again, which can be deeply confusing for parents who assume something must have gone wrong.
Constipation as the Primary Driver
Functional constipation accounts for roughly 90 to 95% of all childhood constipation, meaning no structural or metabolic disease is present.3PubMed Central. Constipation in Childhood. An update on evaluation and management. In children with fecal incontinence, the mechanism usually works like this: a child has a painful bowel movement, begins withholding stool to avoid pain, and the retained stool gradually hardens into a large mass in the rectum. Over time, the rectum stretches and loses sensitivity. Loose or liquid stool then leaks around the blockage, creating what doctors call overflow soiling. The child genuinely does not feel it coming, and by the time the underwear is soiled, the accident has already happened.4PubMed. Pathophysiology of pediatric fecal incontinence
This constipation-incontinence link is so central that fecal incontinence in children is usually understood as a complication of constipation rather than a separate problem. The incontinence is thought to be secondary to the overflow, which is why clearing out the retained stool is almost always the first step in treatment.5PubMed Central. Coexistence of constipation and incontinence in children and adults Urinary incontinence frequently accompanies the fecal version, likely because the distended rectum puts pressure on the bladder. Parents who notice both wetting and soiling should consider constipation as the common thread.
When Constipation Is Not the Cause
About one in five children who present with fecal incontinence have no constipation or any other identifiable underlying condition. This group is diagnosed with functional nonretentive fecal incontinence, or FNRFI.6PubMed. Management of functional nonretentive fecal incontinence in children: Recommendations from the International Children’s Continence Society These children have regular, formed stools and no evidence of stool retention on X-ray, yet they still soil. The cause is not well understood, but it appears to involve difficulty recognizing or responding to the urge to defecate rather than a mechanical overflow problem.
FNRFI tends to be harder to treat and has a less predictable course. Follow-up data suggest that roughly 15% of children with this form still have the same symptoms by age eighteen.7PubMed. Review article: faecal incontinence in children: epidemiology, pathophysiology, clinical evaluation and management That persistence rate, while a minority, is high enough to warrant careful follow-up and early behavioral intervention rather than simply waiting for the child to outgrow it.
Organic Causes That Should Not Be Missed
Although functional causes dominate, a small but important subset of pediatric fecal incontinence stems from structural or neurological problems. Conditions such as anorectal malformations, Hirschsprung disease, and spinal cord defects can all cause fecal incontinence, and in these cases the impact on quality of life tends to be profound and long-lasting.8PubMed. Faecal incontinence: Retentive, non-retentive and when to suspect organic pathology Neurogenic bowel dysfunction has been reported in a wide range of pediatric populations, from those with congenital malformations to those with acquired neurological injury.9PubMed Central. Neurogenic Bowel Dysfunction in Children and Adolescents
Red flags that should prompt a more thorough workup include fecal incontinence that has been present since birth (the child never achieved bowel control), visible anatomical abnormalities around the anus, a tuft of hair or dimple over the lower spine, absent reflexes, or failure to pass meconium in the first day or two of life. When these signs are present, clinicians typically move beyond the standard history-and-physical approach and pursue imaging or referral to a pediatric surgeon or gastroenterologist.
The School Toilet Problem
One of the most underappreciated contributors to stool withholding in children is the school bathroom. A large study of Dutch children found that hygiene and privacy concerns were the most commonly reported reasons for withholding stool at school, with over 84% citing hygiene and nearly 80% citing privacy.10PubMed Central. Stool Withholding at School Among Children in the Netherlands About 41% of the children rated their school toilet cleanliness as insufficient, and among primary school children who withheld stool at school, roughly 4.5% experienced fecal incontinence. Half of the stool-withholding group reported abdominal pain.
A separate study of Danish children found that about a quarter of all children reported avoiding school toilets entirely, and dissatisfaction with school toilet facilities was strongly correlated with symptoms of both bladder and bowel dysfunction.11PubMed. Dissatisfaction with school toilets is associated with bladder and bowel dysfunction For parents trying to address a child’s constipation and soiling, it is worth having a direct conversation about whether the child avoids using the bathroom at school, and if so, why. Sometimes the fix is as practical as advocating for cleaner facilities, arranging access to a private staff restroom, or timing laxatives so that the child’s bowel movement happens at home.
The Emotional and Behavioral Toll
Children with encopresis consistently show higher rates of anxiety, depression, social withdrawal, and disruptive behavior compared with peers who do not soil.12PubMed Central. Chronic Functional Constipation and Encopresis in Children in Relationship with the Psychosocial Environment School performance suffers too. The shame of soiling at school can lead to avoidance, social isolation, and bullying, and the emotional distress that results may in turn worsen the soiling by increasing anxiety around defecation. Researchers have suggested that psychological factors such as internalized shame, poor self-esteem, and anxiety may impair attention, working memory, and executive functioning, creating a feedback loop in which the emotional burden of encopresis compounds its cognitive effects.13Journal of Clinical Paediatrics and Child Health Care. Cognitive Profiles of Children with Encopresis
The connection with ADHD deserves special attention. A multicenter study of children ages five to ten found that kids with both encopresis and ADHD had the most severe clinical profiles across emotional symptoms, executive functioning difficulties, and fear-based eating behaviors, exceeding the impairment seen in children with either condition alone.14PubMed Central. Independent and Interactive Associations of Encopresis and Attention-Deficit/Hyperactivity Disorder in Children on Emotional-Behavioral Symptoms, Executive Functioning, and Avoidant/Restrictive Food Intake-Related Symptoms It is not entirely clear whether ADHD makes encopresis worse, whether the two share overlapping developmental vulnerabilities, or whether the combination simply overwhelms a child’s coping resources. Regardless, children who have both conditions benefit from coordinated care rather than treating each diagnosis in isolation. Interestingly, when ADHD is adequately treated, rates of fecal incontinence in those children may not differ substantially from the general population, though children with ADHD do tend to achieve bowel control later.15PubMed. Incontinence in children with treated attention-deficit/hyperactivity disorder
First-Line Treatment With Laxatives
For constipation-associated fecal incontinence, the first treatment step is clearing out the impacted stool, a process called disimpaction. Polyethylene glycol (PEG), the same ingredient in over-the-counter adult laxatives like MiraLAX, is the most widely used agent. In one trial, PEG plus electrolytes achieved disimpaction in 92% of children without any additional interventions, with a median time of about six days.16PubMed. Treatment of faecal impaction with polyethelene glycol plus electrolytes (PGE + E) followed by a double-blind comparison of PEG + E versus lactulose as maintenance therapy When PEG was compared to lactulose for maintenance therapy afterward, none of the children on PEG reimpacted, while nearly a quarter of those on lactulose did.
Combining PEG with a stimulant laxative can improve results further. One randomized trial found that PEG plus electrolytes combined with sodium picosulphate was superior to PEG alone for both disimpaction and longer-term constipation management.17PubMed Central. Polyethylene Glycol Plus Electrolytes with Stimulant Laxative in Paediatric Faecal Disimpaction: A Randomised Controlled Study Another study used a combined PEG and sodium picosulphate protocol and found that while many children cleared with one course, over half needed a second high-dose round.18PubMed Central. Treatment of fecal impaction in children using combined polyethylene glycol and sodium picosulphate The takeaway for parents is that disimpaction sometimes requires patience. A single round of laxatives may not be enough, and maintenance treatment typically continues for months to prevent stool from building up again while the stretched rectum recovers its normal size and sensation.
Behavioral Approaches and Toilet Training
Laxatives alone are often not enough. Adding structured behavioral strategies substantially improves outcomes. A randomized trial of 87 children compared three approaches: laxatives only, laxatives plus enhanced toilet training (which included scheduled sits, positive reinforcement, and coaching on how to push effectively), and laxatives plus toilet training plus biofeedback. After three months, the toilet training group and the biofeedback group both reduced soiling far more than the laxatives-only group, with reductions of about 76% and 65% respectively, compared to just 21% with laxatives alone.19PubMed. Contribution of behavior therapy and biofeedback to laxative therapy in the treatment of pediatric encopresis Toilet training was the clear winner because it achieved similar results to biofeedback but at lower cost, with fewer sessions, and using fewer laxatives.
A confirmatory study echoed these findings. Enhanced toilet training was again found to be superior to laxatives alone, and the strongest predictor of success was improvement in the first two weeks of treatment, suggesting that families who see early progress are on the right track.20Journal of Pediatric Psychology. Additive Benefits of Laxative, Toilet Training, and Biofeedback Therapies in the Treatment of Pediatric Encopresis For children with nonretentive fecal incontinence, where constipation is not the issue, rewarded scheduled toilet sits have also shown benefit. In one case study, structured toilet sitting combined with a reward system reduced soiling episodes in both school and home settings for a child with significant behavioral challenges.21PubMed Central. Treating non-retentive encopresis with rewarded scheduled toilet visits
The practical components of behavioral treatment are straightforward for parents to implement:
- Scheduled sits: Have the child sit on the toilet for five to ten minutes after meals, taking advantage of the natural gastrocolic reflex that stimulates bowel movement after eating.
- Positive reinforcement: Reward sitting on the toilet and any successful bowel movements with stickers, small privileges, or other incentives. Avoid punishing accidents.
- Coaching on posture: A footstool that allows the child’s knees to sit above hip level mimics a squatting position, which straightens the anorectal angle and makes defecation easier.
Punishment is counterproductive. Many families arrive at the doctor’s office after months of scolding or removing privileges for soiling. Since the child typically cannot feel the soiling happening, punishment only adds shame and anxiety without improving bowel control.
Biofeedback and Pelvic Floor Therapy
Biofeedback uses visual or animated feedback from sensors to help children learn to coordinate the muscles involved in defecation. For children with dyssynergic defecation, where the pelvic floor muscles tighten instead of relaxing during a bowel movement, biofeedback has shown real promise. Research on anorectal manometry in children with constipation-associated fecal incontinence found that these children have reduced anal pressures and markedly elevated rectal sensory thresholds, meaning they need a much fuller rectum before they feel the urge to go.22PubMed. High-resolution anorectal manometry in children with constipation-associated fecal incontinence
One study comparing animated biofeedback with standard management for children with dysfunctional elimination found that all children with fecal soiling in the biofeedback group were symptom-free within a year, and 68% of those with constipation also resolved.23PubMed. Animated biofeedback: an ideal treatment for children with dysfunctional elimination syndrome The evidence for biofeedback is strongest when dyssynergic defecation is confirmed, where it appears to have a clear specific effect on pelvic floor coordination. For fecal incontinence more broadly, a systematic review found biofeedback to be roughly equivalent to other active therapies like pelvic floor exercises, though the evidence was hampered by variable study quality.24PubMed. Biofeedback therapy in fecal incontinence and constipation The practical implication: biofeedback is most worth pursuing when standard laxative and behavioral approaches have not fully resolved the problem, particularly if there is reason to suspect the child has difficulty coordinating the muscles involved in defecation.
When Standard Treatment Fails
A small subset of children do not respond to laxatives, behavioral strategies, and biofeedback. For these refractory cases, more invasive options exist. A systematic review categorized the available approaches and concluded that biofeedback and transcutaneous electrical stimulation serve as reasonable first-line therapies, while sacral nerve stimulation (SNS) and botulinum toxin injections are reserved for children who have failed those options.25Journal of Medicine in Scientific Research. Efficacy and Safety of Different Treatment Strategies in Pediatric Fecal Incontinence: A Systematic Review SNS, which involves implanting a small device that sends mild electrical signals to the nerves controlling the pelvic floor, was effective in refractory cases but came with a higher rate of complications.
Another surgical option is the antegrade continence enema (ACE) procedure, which creates a channel through the appendix into the colon, allowing the child or parent to flush the colon from above with a daily enema. A comparison of ACE and SNS found that SNS appeared more effective for fecal incontinence specifically, while ACE was better at improving bowel movement frequency and reducing abdominal pain.26PubMed Central. Comparison of antegrade continence enema treatment and sacral nerve stimulation for children with severe functional constipation and fecal incontinence Both can lead to durable improvement, but the choice between them depends on whether the child’s main problem is incontinence, infrequent bowel movements, or both.
Long-Term Outlook
The prognosis for childhood fecal incontinence is generally good, though recovery is rarely fast. Review data suggest that about 30 to 50% of children recover within the first year of treatment, and 48 to 75% recover by five years.27PubMed. Encopresis A six-year follow-up of 67 children found that nearly 84% recovered completely, with better outcomes linked to good school performance, higher levels of parental education, and the absence of constipation at diagnosis.28PubMed. Encopresis: long-term clinical outcome of 67 cases
A long-term study tracking children with constipation into adulthood found that about 80% achieved good clinical outcomes by age sixteen, but the proportion actually dipped slightly to 75% thereafter and stayed roughly constant into adulthood. The factors associated with poorer adult outcomes were an older age when symptoms first started, a longer delay between symptom onset and the first specialist visit, and less frequent bowel movements at the time of initial evaluation.29Pediatrics. Long-Term Prognosis for Childhood Constipation: Clinical Outcomes in Adulthood The message for families: seeking help sooner rather than later genuinely improves the long-term trajectory. Waiting and hoping a child will grow out of it is an understandable instinct, but the data argue against it.
The Gut Microbiome and Emerging Research
Researchers have begun investigating whether the gut microbiome plays a role in functional constipation in children. The hypothesis is appealing, since the trillions of bacteria in the colon influence motility, water absorption, and signaling between the gut and the brain. A review of preclinical and clinical work found enough evidence to consider the microbiome a plausible contributing factor, though the research is still in early stages.30PubMed Central. Functional Constipation and the Gut Microbiome in Children: Preclinical and Clinical Evidence One study used machine learning to analyze the microbial profiles of constipated children versus matched controls and could distinguish the two groups with about 82% accuracy, suggesting that measurable microbial differences do exist.31PLOS ONE. Characterization of Microbiota in Children with Chronic Functional Constipation
What this means practically is still unclear. Probiotics and prebiotics are generally safe for children and some parents report improvements, but the evidence for any specific strain or product resolving constipation or fecal incontinence is not yet strong enough to recommend them as a primary treatment.32PubMed. Non-pharmacologic approach to pediatric constipation Other complementary approaches such as abdominal massage and acupuncture have attracted some interest, but the data remain preliminary and largely limited to case reports or small studies. These may be worth exploring alongside conventional treatment for families who are interested, but should not replace laxative therapy and behavioral intervention as the foundation of care.
Transitioning to Adult Care
For children whose fecal incontinence stems from structural conditions like Hirschsprung disease or anorectal malformations, the challenges do not end at age eighteen. A qualitative study of adults who grew up with Hirschsprung disease described the experience as being “scarred body and soul,” with ongoing somatic and psychosocial challenges compounded by limited knowledge of their own condition. Patients described an “absent transition” from pediatric to adult care and struggled to find adult specialists familiar with their diagnosis.33PubMed. Reaching adulthood with Hirschsprung’s disease: Patient experiences and recommendations for transitional care These patients strongly recommended that transition planning begin in early adolescence, with a focus on educating the teenager about their condition and connecting them with peer support. Families of children with congenital bowel conditions should begin conversations about adult care well before the eighteenth birthday, ideally working with the pediatric team to identify adult gastroenterologists or colorectal surgeons who have experience managing these lifelong conditions.