Health Topics

Pyloric Stenosis

Pyloric stenosis is the narrowing of the lower portion of the stomach (pylorus) that leads into the small intestine. The muscles in this part of the stomach thicken, narrowing the opening of the pylorus and preventing food from moving from the stomach to the intestine.

This problem typically occurs in infants between 2 and 8 weeks of age and affects one out of every 500 to 1,000 live births.

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Reasons for Concern About Pyloric Stenosis

Causes of Pyloric Stenosis

Risk Factors for Pyloric Stenosis

Signs and Symptoms of Pyloric Stenosis

Diagnosis of Pyloric Stenosis

Treatment for Pyloric Stenosis

After Surgery

Call Your Child's Doctor If:

Long-Term Outlook

Last Updated: 12/2013