Pyloric stenosis is always treated with surgery (pyloromyotomy). Once your baby has the surgery, pyloric stenosis usually will not develop again.

Types of surgery
Two methods of surgery are used to correct pyloric stenosis梠pen surgery and laparoscopic surgery. Your doctor will choose which one is best for your baby.

During open surgery, a small incision is made in the baby's abdominal wall. The pyloric muscle is then cut to widen the channel between the stomach and the intestine.
During laparoscopic surgery, an instrument called a laparoscope is inserted through a small incision made in the baby's belly button. The laparoscope provides access to the pyloric muscle so the muscle can be cut. Several other small incisions are usually necessary.

Before surgery

Your baby may not go to surgery immediately after being diagnosed with pyloric stenosis. If your baby is dehydrated, he or she may need to receive fluids through a vein (intravenous, or IV) for 24 to 48 hours. Another tube may be put through your baby's nose to drain fluids from the stomach (nasogastric tube).

After surgery
After surgery, your baby may be fed special fluids for one or two feedings and then formula or breast milk within 24 hours. Your baby usually will go home within 2 days after surgery.

It is normal for a baby to vomit a small amount during the first day or two after surgery. However, if your baby continues to vomit after you return home, call your health professional. In some cases, persistent vomiting indicates an incomplete cutting of the pyloric muscle.

Complications from surgery (which may include infection at the incision site) are rare. A red or raised incision, with or without drainage, may indicate an infection.

Home Treatment
It is normal for babies to spit up small amounts from their feedings; however, vomiting most or all of feedings is not normal. If your baby 5 months of age or younger has repetitive forceful vomiting shortly after feedings, is irritable and acts hungry, and has fewer wet diapers than usual, he or she may need to be evaluated for pyloric stenosis. Talk to a health professional about your baby's symptoms.

After surgery for pyloric stenosis
While your baby is in the hospital for pyloric stenosis, be actively involved in his or her care so that you will feel more comfortable doing it on your own after you take your baby home. Don't be afraid of holding or handling your baby. After one or two feedings of a clear liquid (glucose water), you may be allowed to give your baby formula or breast milk.

When your baby comes home from the hospital, give small, frequent feedings, according to your health professional's instructions. Your baby may vomit occasionally for the first few days after surgery. If vomiting is frequent or persistent (lasts beyond 2 to 3 days after surgery), call your health professional.

Complications from surgery to correct pyloric stenosis are rare. However, call your health professional if you are concerned about the wound healing properly. A red or raised incision, with or without drainage, may indicate an infection