Health Encyclopedia

Home | List of Topics | Children's Health | General Pediatrics

Nasal flaring

Definition

Nasal flaring refers to enlargement of the opening of the nostrils during breathing.

Alternative Names

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

Considerations

Nasal flaring is seen mostly in infants and younger children. Nasal flaring is often an indication that increased effort is required for breathing.

Any condition that causes the infant to work harder to obtain enough air 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 sign of respiratory distress.

Common Causes

• Airway obstruction (any cause)
• Bronchiolitis
• Croup
• Asthma (acute)
• Acute epiglottitis
• Transient tachypnea of the newborn
• Pneumonia

Home Care

For any sign of difficulty breathing, emergency help should be sought immediately.

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 indicates that breathing difficulty is severe and may indicate that an emergency condition is developing.
• You have any suspicion that your child is having trouble breathing.

What to expect at your health care provider's office

The health care provider will perform a physical exam to determine if the flaring is due to upper or lower respiratory problems. 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 are present?

Physical examination will include careful listening to the breath sounds (auscultation).

The following tests may be performed:

• Arterial blood gas analysis
• CBC (blood test)
• ECG
• X-rays of the chest

The patient may be given oxygen.

Review Date:5/10/2006
Reviewed By:Daniel Rauch, MD, FAAP, Director, Pediatric Hospitalist Program, Associate Professor of Pediatrics, NYU School of Medicine, New York, NY. Review provided by VeriMed Healthcare Network.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is the first of its kind, requiring compliance with 53 standards of quality and accountability, verified by independent audit. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial process. A.D.A.M. is also a founding member of Hi-Ethics (www.hiethics.com) and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

The Agency for Health Care Administration (Agency) and this website do not claim the information on, or referred to by, this site is error free. This site may include links to websites of other government agencies or private groups. Our Agency and this website do not control such sites and are not responsible for their content. Reference to or links to any other group, product, service, or information does not mean our Agency or this website approves of that group, product, service, or information.

Additionally, while health information provided through this website may be a valuable resource for the public, it is not designed to offer medical advice. Talk with your doctor about medical care questions you may have.