Potty Training: What's Typical, What's Not, and When Occupational Therapy Can Help

Potty training is one of the biggest milestones in early childhood. For some children, it seems to happen almost effortlessly. For others, it can become a daily struggle filled with accidents, tears, power struggles, and frustration.

As parents, it's easy to wonder:

•  Is my child behind?

•  Are accidents normal?

•  Why do they refuse to sit on the toilet?

•  Shouldn't they be potty trained by now?

The truth is that potty training is about much more than learning where to pee and poop. It requires the brain, body, nervous system, muscles, senses, emotions, and executive functioning skills to all work together.

When one or more of these systems isn't fully developed, potty training can become much more difficult.

At mOTivated Kids, we help families understand the why behind potty training challenges so children can become confident, independent, and successful.

What Is the Typical Age for Potty Training?

Research shows there is a wide range of normal.

Most children begin showing signs of readiness between 18 and 30 months, while many complete daytime toilet training somewhere between 2 and 4 years of age. Nighttime dryness often develops much later and can continue to improve until 5 to 7 years old.

Every child develops at their own pace, but readiness is more important than age alone.

Signs Your Child Is Ready for Potty Training

A child is typically ready when they begin demonstrating several developmental skills.

These include:

•  Staying dry for 2 hours or longer

•  Recognizing when they are wet or soiled

•  Showing interest in the bathroom

•  Following simple directions

•  Pulling pants up and down independently

•  Walking to the bathroom without assistance

•  Sitting on the toilet for several minutes

•  Communicating the need to go using words, gestures, or signs

•  Beginning to recognize the sensation of needing to urinate or have a bowel movement

Not every child will demonstrate every sign before training begins, but the more skills they possess, the smoother the process often becomes.

What Is Normal During Potty Training?

Even children who are developing typically experience setbacks. Common experiences include:

Occasional accidents

Accidents are expected while children learn to recognize body signals and develop consistent routines.

Regression

Illness, moving, vacations, a new sibling, starting daycare, or other stressful events can temporarily interrupt successful potty habits.

Fear of flushing

Many toddlers become startled by the loud sound of automatic or public toilets.

Wanting privacy

Some children prefer to hide while having a bowel movement before they feel comfortable using the toilet.

Inconsistent success

A child may master urination before bowel movements or be successful at daycare but not at home.

These situations are generally considered part of normal development.

When Potty Training Is Not Going as Expected

Some challenges suggest that more than simple practice may be needed.

Consider speaking with your pediatrician or an occupational therapist if your child:

•  Is over age 4 and shows little progress

•  Refuses to sit on the toilet consistently

•  Becomes extremely distressed when asked to use the bathroom

•  Frequently withholds bowel movements

•  Has painful constipation

•  Has daily accidents well after learning the skill

•  Cannot recognize when they need to go

•  Has recurring urinary tract infections (medical evaluation first)

•  Seems unaware of being wet or soiled

•  Has significant sensory sensitivities affecting toileting

•  Experiences frequent stool leakage after constipation (encopresis)

•  Demonstrates intense fear surrounding toileting

These concerns often have underlying developmental reasons that deserve attention rather than punishment.

Why Potty Training Is More Than Just a Behavioral Skill

Many people assume children simply need enough motivation.

In reality, successful toilet training depends on several developmental systems working together.

Sensory Processing

Children must accurately feel signals coming from the bladder and bowel.

Some children have reduced interoceptive awareness, meaning they don't notice internal sensations until it is too late.

Others experience these sensations as overwhelming and may become anxious or avoid toileting altogether.

Sensory processing differences can also make children dislike:

•  Sitting on the toilet seat

•  The feeling of cold air

•  Loud flushing noises

•  Public bathrooms

•  Toilet paper

•  Washing hands afterward

When sensory processing is affecting toileting, rewards alone rarely solve the problem.

Interoception: Understanding Body Signals

Interoception is our body's ability to recognize internal sensations.

Children rely on interoception to notice:

•  Hunger

•  Thirst

•  Fatigue

•  Pain

•  Full bladder

•  Need for a bowel movement

If these signals are weak or difficult to interpret, children may not realize they need the bathroom until after an accident occurs.

Occupational therapists frequently work on improving body awareness through play-based activities that strengthen interoceptive processing.

Executive Function

Toilet training also depends heavily on executive functioning skills.

Children must:

•  Notice body signals

•  Stop playing

•  Shift attention

•  Remember the bathroom routine

•  Walk to the bathroom

•  Pull clothing down

•  Sit long enough

•  Wipe

•  Flush

•  Wash hands

•  Return to their activity

For children with executive functioning challenges, every one of these steps requires significant mental effort.

Motor Skills

Toileting requires surprisingly complex motor abilities.

Children need:

•  Balance while sitting

•  Core strength

•  Postural stability

•  Bilateral coordination

•  Fine motor skills for clothing management

•  Hand strength for wiping

•  Coordination for handwashing

Children with motor delays often struggle with these tasks despite understanding what they need to do.

Emotional Regulation

Some children become overwhelmed by the expectations surrounding potty training.

Anxiety may lead to:

•  Stool withholding

•  Bathroom refusal

•  Crying

•  Meltdowns

•  Avoidance

A regulated nervous system is essential for learning any new skill, including toileting.

Constipation: One of the Most Common Reasons Potty Training Stalls

Many families don't realize constipation can significantly interfere with potty training.

When stool remains in the colon, it stretches the bowel and decreases sensation. Over time, children may lose awareness that they need to have a bowel movement.

Constipation can also place pressure on the bladder, increasing urinary accidents.

Signs of constipation include:

•  Large, painful stools

•  Skipping several days between bowel movements

•  Stool withholding

•  Frequent stomachaches

•  Small stool accidents

•  Pain with toileting

Medical evaluation should always be the first step when constipation is suspected.

Potty Training and Autism

Children with autism often achieve toilet training later than their peers.

This is not because they cannot learn—it is often because they experience differences in:

•  Sensory processing

•  Communication

•  Interoception

•  Motor planning

•  Routine flexibility

•  Anxiety

•  Executive functioning

With individualized supports, visual schedules, sensory strategies, and structured routines, many autistic children become successful with toileting.

How Occupational Therapy Helps Potty Training

Occupational therapy looks beyond accidents to understand why they are happening.

Instead of focusing only on rewards and charts, OT evaluates the developmental skills that support successful toileting.

An occupational therapist may assess:

•  Sensory processing

•  Body awareness (interoception)

•  Gross motor skills

•  Fine motor skills

•  Postural control

•  Executive functioning

•  Emotional regulation

•  Daily routines

•  Environmental setup

•  Family habits and routines

Treatment is individualized and may include:

•  Sensory regulation strategies

•  Improving body awareness

•  Toilet positioning recommendations

•  Visual schedules

•  Sequencing routines

•  Clothing adaptations

•  Motor skill development

•  Parent coaching

•  Building independence through play

The goal is not simply fewer accidents—it is helping children become confident, independent, and successful.

When Should You Seek an Occupational Therapy Evaluation?

Consider an OT evaluation if your child:

•  Avoids the toilet despite repeated attempts

•  Has significant sensory sensitivities

•  Doesn't recognize when they need to go

•  Has difficulty with clothing management

•  Becomes overwhelmed during toileting

•  Has developmental delays affecting independence

•  Has autism, ADHD, sensory processing differences, or motor coordination challenges

•  Experiences persistent accidents despite consistent practice

•  Has a history of delayed self-care skills

Earlier intervention often prevents months—or even years—of frustration.

Helping Your Child Succeed

Potty training is not a race. Every child develops at a different pace, and many children who struggle simply need additional support rather than more pressure. When we understand how sensory processing, motor skills, executive functioning, body awareness, and emotional regulation influence toileting, we can replace frustration with strategies that actually work.

If potty training has become a daily battle, know that you are not alone—and your child is not being stubborn or lazy.

Sometimes they simply need the right support to help their body and brain work together.

We're Here to Help

At mOTivated Kids, we specialize in helping children who struggle with the underlying developmental skills that make potty training possible. Through comprehensive occupational therapy evaluations, we identify the root cause of your child's challenges and create a personalized plan that builds confidence, independence, and success—for both your child and your family.

Ready to stop guessing and start understanding why potty training is so hard? Contact mOTivated Kids today to schedule a Discovery Call and learn how occupational therapy can help.

References

American Academy of Pediatrics. (2024). Toilet Training Guidelines: Day Care Providers—The Role of the Occupational Therapist. Pediatrics.

American Occupational Therapy Association. (2020). Occupational Therapy Practice Framework: Domain and Process (4th ed.). American Journal of Occupational Therapy, 74(Suppl. 2), 7412410010.

Brazelton, T. B., & Sparrow, J. D. (2006). Toilet Training: The Brazelton Way. Da Capo Press.

Case-Smith, J., O'Brien, J. C., & Kuhaneck, H. (2025). Occupational Therapy for Children and Adolescents (9th ed.). Elsevier.

Feldman-Winter, L., & Shaikh, N. (2023). Toilet training. In Nelson Textbook of Pediatrics (22nd ed.). Elsevier.

Joinson, C., Heron, J., von Gontard, A., Butler, U., Golding, J., & Emond, A. (2009). A prospective study of age at initiation of toilet training and subsequent daytime bladder control in school-age children. Journal of Developmental & Behavioral Pediatrics, 30(5), 385–393.

Schaaf, R. C., & Mailloux, Z. (Eds.). (2015). Clinician's Guide for Implementing Ayres Sensory Integration®: Promoting Participation for Children with Autism. AOTA Press.

Schaaf, R. C., & Lane, A. E. (2015). Toward a best-practice protocol for assessment of sensory features in autism spectrum disorder. Journal of Autism and Developmental Disorders.

Taubman, B. (1997). Toilet training and toileting refusal for stool only: A prospective study. Pediatrics, 99(1), 54–58.

Von Gontard, A. (2012). The impact of bladder and bowel dysfunction on children's quality of life. Journal of Pediatric Urology, 8(1), 7–11.