Which is achieved first bowel or bladder control

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toilet training AND child development

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toilet training bladder bowel control which comes first child development

Bowel control is usually achieved before bladder control.
In particular, nighttime bowel control often develops first; nighttime bladder control can take months or years longer. HealthyChildren guidance supports this typical sequence.

What are the typical ages for bowel and bladder control?

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site:healthychildren.org stages toilet training bowel bladder control typical age daytime nighttime

Typical pattern, with normal variation:
  • Readiness for bowel and bladder control: about 18-24 months
  • Toilet training commonly begins: 2-3 years
  • Daytime bowel control: usually achieved first, often during the 2nd to 3rd year
  • Daytime bladder control: commonly established by around age 4
  • Nighttime bladder control: develops later. Bedwetting can still be normal through age 5, and occasional episodes are common beyond that.
Most children have both daytime bowel and bladder control by age 4, but the timing differs widely between children. AAP toilet-training guidance notes that signs of control often emerge at 18-24 months.
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