If you're a new parent, you're likely used to diapers, perhaps bottle feedings and the occasional spitup.

Now, a new study recently published in the journal Pediatrics looks at whether bottle feeding may be linked to a serious condition called pyloric stenosis, a blockage between the stomach and the intestine which can cause projectile vomiting, dehydration and constipation. It is one of the more common causes of intestinal obstruction during infancy and often requires surgery to correct.

Researchers looked at data from more than 70,000 babies, 65 of which had to have surgery for pyloric stenosis. Among those 65 infants, 29 were bottle-fed before diagnosis. The researchers determined that the bottle-fed babies had a higher risk for pyloric stenosis than those who were not bottle fed at all. The researchers say that while the connection is clear, the reason behind it is not.

They suggest breastfeeding your baby exclusively in the first months of life.