What is the definition or description of: pyloric stenosis?

See below: Pyloric stenosis is a narrowing of the pylorus, the opening from the stomach into the small intestine. The cause of the thickening is unknown, although genetic factors may play a role. Children of parents who had pyloric stenosis are more likely to have this condition.

Stomach blockage: Pyloric stenosis is when the pyloric muscle thickens and closes off the outlet to the stomach. This causes vomiting which lead to dehydration. Happens usually between 2-8 weeks of age. Vomiting can be forceful.

Stomach obstruction: Pyloric stenosis is thickening or hypertrophy of pyloric muscle causing gastric outlet obstruction.Usually 3 to 6 weeks of age, more common in males.Projectile vomiting. forceful ejection of milk or formula up to several feet away,persistent hunger, increased stomach contractions, dehydration.changes in bowel movements, maintaining or loosing weight. Cure is usually incision into pyloric muscle.