Flaring of the alae nasi (nostrils); Nostrils – flaring
Definition of Nasal flaring
Nasal flaring is the enlargement of the opening of the nostrils during breathing. It is often a sign that increased effort is needed to breathe.
Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. – 4/26/2010