Laryngotracheobronchitis, Acute

What is croup?

Croup is a fairly common chest condition affecting young children aged between 6 months and 3 years. It is a respiratory tract infection that affects the trachea (windpipe) and the bronchi (the two large airways that carry air from the trachea into the lungs). Its medical name is acute laryngo-tracheo-bronchitis.

A bark-like cough and a noisy high-pitched sound when breathing in (called stridor), are characteristic symptoms of croup, and distinguish croup from other coughs.

Find out more about the causes, symptoms, and medicines and treatments for croup.

  • Respiratory Expert Group. Therapeutic guidelines: Croup. In: eTG complete [online]. Melbourne: Therapeutic Guidelines Limited, 2012 (accessed 12 April 2012).
  • Russell KF, Liang Y, O'Gorman K, et al. Glucocorticoids for croup. Cochrane Database of Systematic Reviews 2011, Issue 1. DOI: 10.1002/14651858.CD001955.pub3.
  • NHS Choices – croup: (accessed 18 April 201120)

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04 May 2012 Croup is usually caused by viruses, including the viruses that cause pneumonia and the flu. Learn more about the causes of croup and how it can be prevented.
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