Nasal flaring

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Nasal flaring

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

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.

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

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