Your baby's doctor will start with a physical examination. Sometimes, the doctor can feel an olive-shaped lump — the enlarged pyloric muscle — when examining the baby's abdomen. The peristaltic waves in the baby's abdomen are another telltale sign of pyloric stenosis.
Your doctor might also recommend:
- Blood tests to check for dehydration or electrolyte imbalance or both
- Ultrasound to view the pylorus and confirm a diagnosis of pyloric stenosis
- X-rays of your baby's digestive system, if results of the ultrasound aren't clear