New Study: Cesarean Section Babies are Much More Likely to Develop Allergies

View all news posts

A new study suggests that babies born by cesarean section are five times more likely than babies delivered vaginally to develop allergies by the time they turn two.

The findings follow earlier research that demonstrated babies born by c-section are more likely to develop asthma than those delivered naturally.

When exposed to high levels of common allergens in the home (from cats, dogs, and dust mites), the chance of developing allergies for c-section babies is five times greater than for those born naturally, the new study found.

The study's lead author, Christine Cole Johnson, Ph.D., MPH, said the findings further advance the hygiene hypothesis that early childhood exposure to microorganisms affects the immune system's development and onset of allergies.

"We believe a baby's exposure to bacteria in the birth canal is a major influencer on their immune system," said Cole Johnson, the chair of Henry Ford Department of Health Sciences.

Disclaimer - Ross Feller Casey, LLP provides legal advice only after an attorney-client relationship is formed. Our website is an introduction to the firm and does not create a relationship between our attorneys and clients. An attorney-client relationship is formed only after a written agreement is signed by the client and the firm. Because every case is unique, the description of awards and summary of cases successfully handled are not intended to imply or guarantee that same success in other cases. Ross Feller Casey, LLP represents catastrophically injured persons and their families in injury and wrongful death cases, providing legal representation in Pennsylvania and New Jersey.


  • NBC
  • CNN
  • ABC
  • CBS
  • AP
  • The Philadelphia Inquirer

Contact us for an initial consultation

If you would like a member of our staff to contact you for a free initial consultation on your case, please complete this form, or call us toll-free at 215-515-4401.

  • Ross Feller Casey, LLP One Liberty Place 1650 Market St, Suite 3450 Philadelphia, PA 19103

    This web site is designed for general information only. The information presented at this site should not be construed to be formal legal advice nor the formation of a lawyer/client relationship.

    Because every case is different, the description of awards and cases previously handled do not guarantee a similar outcome in current or future cases.

    Copyright © 2016 Ross Feller Casey, LLP