Skip to Content

Nasal flaring

Definition

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.

Alternative Names

Flaring of the alae nasi (nostrils); Nostrils - flaring

Considerations

Nasal flaring is seen mostly in infants and younger children.

Any condition that causes the infant to work harder to breathe can cause nasal flaring. While many causes of nasal flaring are not serious, some can be life threatening.

In young infants, nasal flaring can be a very important symptom of respiratory distress.

Causes

Home Care

Seek immediate emergency help if you or your child has signs of a breathing difficulty.

When to Contact a Medical Professional

Call your health care provider if:

  • There is any persistent, unexplained nasal flaring, especially in a young child.
  • Bluish color develops in the lips, nail beds, or skin. This is a sign that breathing difficulty is severe and may mean that an emergency condition is developing.
  • You think that your child is having trouble breathing.

What to Expect at Your Office Visit

The health care provider will perform a physical exam to determine if the flaring is due to upper or lower respiratory problems. The exam will include careful listening to the breath sounds. This is called auscultation.

Medical history questions may include:

  • When did it start?
  • Is the person getting better or worse?
  • Does the person look blue?
  • Is the breathing noisy, or are there wheezing sounds?
  • Are there grunting noises with the breathing?
  • Does the person look like they are working hard to breathe?
  • Are they getting tired or sweaty?
  • Do the muscles of the stomach, shoulders, or rib cage need to be used when the person is breathing? (See: intercostal retractions)
  • What other symptoms does the person have?

The following tests may be performed:

The patient may be given oxygen.

References

Wiebe RA. General approach to the pediatric patient. In: Marx J, ed. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 6th ed. St. Louis, Mo: Mosby; 2006:chap. 164.

Review Date: 4/26/2010
Reviewed By: 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.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com

Disclaimer: The information contained in this website, and its associated websites, is provided as a benefit to the local community, and the Internet community in general; it does not constitute medical advice. We try to provide quality information, but we make no claims, promises or guarantees about the accuracy, completeness, or adequacy of the information contained in or linked to this website and its associated sites. As medical advice must be tailored to the specific circumstances of each patient and healthcare is constantly changing, nothing provided herein should be used as a substitute for the advice of a competent physician. Furthermore, in providing this service, Adventist HealthCare does not condone or support all of the content covered in this site. As an Adventist health care organization, Adventist HealthCare acts in accordance with the ethical and religious directives for Adventist health care services.

Adventist HealthCare · 301-315-3030 · 1801 Research BLVD, Suite 400, Rockville, MD 20850

Submit an Online Information Request