Complications

Pyloric stenosis can lead to:

• Failure to grow and develop.
• Dehydration. Frequent vomiting can cause dehydration and a mineral (electrolyte) imbalance. Electrolytes help regulate many vital functions.
• Stomach irritation. Repeated vomiting can irritate your baby's stomach and may cause mild bleeding.
• Jaundice. Rarely, a substance secreted by the liver (bilirubin) can build up, causing a yellowish discoloration of the skin and eyes.