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A 44-year-old member asked:

Does pyloric stenosis cause yellow bile in the vomit?

2 doctor answers3 doctors weighed in
Dr. Troy Reyna
Pediatric Surgery 45 years experience
No: Bile is green. Babies with pyloric stenosis also have hyperbilirubinemia and this can cause the gastric secretions to take on a yellow hue.
Dr. Charles Breaux
Pediatric Surgery 40 years experience
Not bile: Technically, there can be no bile in the emesis of a patient with pyloric stenosis. The pylorus is the muscular valve that controls exit of contents from the stomach. When the pylorus is stenotic, it is virtually closed, and the patient vomits out all gastric contents. Bile enters the GI tract in the duodenum downstream from the pylorus and stomach, so it can't be in the emesis of such a patient.

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Last updated Jun 10, 2014


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