Nasal flaring may be an indication of breathing difficulty, or even respiratory distress in infants. Check for airway obstructions, and call a health care provider.
Review Date 5/20/2018
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.