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    Pyloric Stenosis Directory

    Pyloric stenosis is a problem with a baby’s stomach that causes forceful vomiting. It happens when the baby's pylorus, which connects the stomach and the small intestine, swells and thickens. This can keep food from moving into the intestine. A baby may get pyloric stenosis any time between birth and 5 months of age. It usually starts about 3 weeks after birth. If your baby was born early (premature), symptoms may start later. Experts don't know what causes pyloric stenosis. It may be passed down through families. Follow the links below to find WebMD's comprehensive coverage about pyloric stenosis, what it looks like, how to treat it, and much more.

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    More About Pyloric Stenosis

    A prolonged bout of diarrhea or vomiting can cause the body to lose more fluid than it can take in, resulting in dangerous dehydration.

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