Who is affected by pyloric stenosis

Pyloric stenosis occurs in 1 to 3 out of 1,000 babies.1 It develops most often in those babies who:2

  • Have family members who had pyloric stenosis. About 13 out of 100 babies with pyloric stenosis have a close family member who had the condition.
  • Are male. Males are affected 4 times more often than females.


Author: Debby Golonka, MPH
Ralph Poore
Last Updated: February 13, 2008
Medical Review: Adam Husney, MD - Family Medicine
Michael J. Sexton, MD - Pediatrics
Andrew Swan, MD, CCFP, FCFP - Family Medicine

© 1995-2008 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

Click here to learn about Healthwise
Click here to learn about Healthwise