Pyloric Stenosis Quiz

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Aiko Yoshioka

Aiko Yoshioka, MD (Gastroenterology)

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Learn more about Pyloric stenosis

Content updated on Nov 2, 2022

What is pyloric stenosis?

Abnormal narrowing of the stomach exit. Risk factors include male gender, preterm birth and smoking during pregnancy.

Symptoms of pyloric stenosis

  • Child vomited vigorously after feeding

  • Nausea or vomiting

  • Wants to feed after vomiting

  • Loss of appetite

  • Stomach feels bloated

  • Vomited blood

  • Unable to gain weight

  • Abdominal pain

Questions your doctor may ask to check for pyloric stenosis

Your doctor may ask these questions to diagnose pyloric stenosis

  • Did your child vomit forcefully (projectile vomiting) after feeding?

  • Do you have nausea or vomiting?

  • Do you have a craving for milk after vomiting?

  • Do you have less or no appetite, therefore eat less food?

  • Do you feel that your abdomen (stomach) is bloated or has a lot of gas?

Treatment for pyloric stenosis

The usual treatment is surgery to widen the stomach exit. The specialist will advise you whether an open (traditional) or keyhole surgery is more suitable. Fluids may be given through a needle in the vein if the baby is dehydrated.

View the symptoms of Pyloric stenosis


  • Letton RW Jr. Pyloric stenosis. Pediatr Ann. 2001 Dec;30(12):745-50. doi: 10.3928/0090-4481-20011201-09. PMID: 11766203.

  • Pandya S, Heiss K. Pyloric stenosis in pediatric surgery: an evidence-based review. Surg Clin North Am. 2012 Jun;92(3):527-39, vii-viii. doi: 10.1016/j.suc.2012.03.006. Epub 2012 Apr 20. PMID: 22595707.

  • Dinkevich E, Ozuah PO. Pyloric stenosis. Pediatr Rev. 2000 Jul;21(7):249-50. doi: 10.1542/pir.21-7-249. PMID: 10878190.

Reviewed By:

Aiko Yoshioka

Aiko Yoshioka, MD (Gastroenterology)

From our team of 50+ doctors

Just 3 minutes.
Developed by doctors.

Ubie is supervised by 50+ medical experts worldwide

Shohei Harase

Shohei Harase, MD


Kameda Medical Center, Japan

Yu Shirai

Yu Shirai, MD


Yotsuya Yui Clinic, Japan

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Yoshinori Abe, MD

Internal medicine

Co-founder of Ubie, Inc.

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Rohini R, MD

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Seiji Kanazawa, MD, PHD

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National Center for Child Health and Development, Japan

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