Bedwetting (Enuresis) in Toddlers
The short answer
Nighttime bedwetting is extremely common and developmentally normal for toddlers and young children. Nighttime bladder control is one of the last developmental milestones and depends on brain-bladder signaling that matures at different rates for every child. Most children achieve consistent nighttime dryness between ages 3 and 5, and some not until age 7 or later. Bedwetting is not a behavioral problem and is not caused by laziness or deep sleep alone.
By Age
What to expect by age
At this age, nighttime wetting is completely expected, even for children who are fully daytime potty trained. Daytime and nighttime bladder control develop separately. The hormone vasopressin, which slows urine production at night, may not yet be produced in sufficient amounts. There is no need to rush nighttime training. Using waterproof mattress covers and pull-ups at night is perfectly appropriate.
Many 3-year-olds still wet the bed regularly, and this remains within normal range. Some children begin waking up dry spontaneously as their nervous system matures. You can look for signs of readiness like waking with a dry pull-up several mornings in a row. Restricting fluids before bed and encouraging a bathroom trip at bedtime can help, but the primary factor is biological maturation.
What Should You Do?
When to take action
- A toddler who is daytime potty trained but still wets at night
- Occasional dry nights mixed with wet nights as the child gradually transitions
- Bedwetting that runs in the family, as there is a strong genetic component
- A temporary return to bedwetting during stressful times like a new sibling, move, or starting daycare
- Needing pull-ups or training pants at night through age 4-5
- Your child was consistently dry at night for 6+ months and has started wetting again (secondary enuresis)
- Your child is also having daytime wetting accidents after being fully trained
- Your child complains of pain or burning during urination
- Bedwetting is causing significant emotional distress for your child
- Your child has new bedwetting along with excessive thirst, increased urination during the day, or unexplained weight loss, which could indicate diabetes
- Your child has pain, fever, or foul-smelling urine along with bedwetting, which could suggest a urinary tract infection
- Your child snores loudly or has pauses in breathing during sleep along with bedwetting, which may indicate sleep apnea
Sources
Related Resources
Related Behavior Concerns
Potty Training Regression
Potty training regression is extremely common and almost never a cause for medical concern. Many children who were reliably using the toilet start having accidents again during times of stress, change, illness, or developmental leaps. This is a temporary setback, not a failure. With patience and a calm, supportive approach, most children return to their previous potty skills within a few weeks.
Potty Training Refusal
Potty training refusal is one of the most common challenges parents face with toddlers. Many children simply are not ready when parents expect them to be, and pushing too hard often makes the resistance worse. The average age for potty training readiness is between 2 and 3 years, but some children are not truly ready until closer to 3.5 or even 4. Backing off, reducing pressure, and waiting for signs of readiness is usually the most effective strategy.
Toddler Not Potty Trained by Age 3
While many children are potty trained between ages 2 and 3, it is completely normal for some children to not be fully trained until age 3.5 or even 4. The AAP states there is no "right" age for potty training - readiness varies widely. Girls tend to train earlier than boys. Pressuring a child who is not ready often backfires, leading to resistance and regression. Signs of readiness include staying dry for 2+ hours, awareness of wet or dirty diapers, interest in the toilet, and ability to follow simple directions.
My Toddler Is Aggressive Toward Pets
Toddlers being rough with pets is extremely common and almost never reflects true aggression or cruelty. Young children lack the motor control to be consistently gentle and do not yet understand that animals feel pain the way they do. With patient, consistent teaching about gentle touch and close supervision, most toddlers learn to interact safely with pets by age 3-4.
My Baby Doesn't Seem Attached to Anyone
By 7-9 months, most babies show clear preferences for their primary caregivers and some wariness of unfamiliar people. If your baby seems equally comfortable with everyone and shows no distress when separated from caregivers, it may simply reflect an easy-going temperament. However, if combined with other social differences, it can occasionally warrant further discussion with your pediatrician.
Baby Arching Back and Crying During Feeding
A baby who arches their back and cries during feeding is often showing signs of discomfort. The most common cause is gastroesophageal reflux (GER) - stomach acid flowing back into the esophagus causes a burning sensation, and the baby arches to try to relieve it. Other causes include an improper latch (breastfeeding), a bottle nipple with too fast or too slow a flow, ear infection pain worsened by swallowing, oral thrush, or being overstimulated. If this is happening regularly, discuss it with your pediatrician.