Where Does Pyloric Stenosis Occur?

Pyloric stenosis is a condition that affects an infant's pylorus, a muscle at the end of the stomach. When the pylorus thickens, food can't pass through. Pyloric stenosis symptoms include forceful vomiting, which may cause dehydration. Surgery can repair the problem.

Where is pyloric stenosis located?

The lower portion of the stomach that connects to the small intestine is known as the pylorus. In pyloric stenosis, the muscles in this part of the stomach enlarge, narrowing the opening of the pylorus and eventually preventing food from moving from the stomach to the intestine.

When does pyloric stenosis occur?

Signs of pyloric stenosis usually appear within three to five weeks after birth. Pyloric stenosis is rare in babies older than 3 months.