Stridor is an abnormal, high-pitched, musical breathing sound. It is caused by a blockage in the throat or voice box (larynx). It is most often heard when taking in a breath.
Breathing sounds - abnormal; Extrathoracic airway obstruction; Wheezing - stridor
Children are at higher risk of airway blockage because they have narrower airways than adults. In young children, stridor is a sign of airway blockage. It must be treated right away to prevent the airway from becoming completely closed.
The airway can be blocked by an object, swollen tissues of the throat or upper airway, or a spasm of the airway muscles or the vocal cords.
Common causes of stridor include:
Follow your health care provider's advice to treat the cause of the problem.
Stridor may be a sign of an emergency. Call your provider right away if there is unexplained stridor, especially in a child.
In an emergency, the provider will check the person's temperature, pulse, breathing rate, and blood pressure, and may need to do abdominal thrusts.
A breathing tube may be needed if the person can't breathe properly.
After the person is stable, the provider may ask about the person's medical history, and perform a physical exam. This includes listening to the lungs.
Parents or caregivers may be asked the following medical history questions:
Tests that may be done include:
Andrew Bush is in Switzerland. Bush is rated as an Elite expert by MediFind in the treatment of Stridor. They are also highly rated in 29 other conditions, according to our data. Their top areas of expertise are Asthma, Stridor, Cystic Fibrosis, and Bronchiectasis.
Yukio Nagasaka is in Otowa, Japan. Nagasaka is rated as an Elite expert by MediFind in the treatment of Stridor. He is also highly rated in 2 other conditions, according to our data. His top areas of expertise are Stridor, Asthma, Chronic Eosinophilic Pneumonia, and Lung Cancer.
Leonard Bacharier is a Pediatric Allergy and Immunologist and a Pediatrics doctor in Nashville, Tennessee. Dr. Bacharier has been practicing medicine for over 30 years and is rated as an Elite doctor by MediFind in the treatment of Stridor. He is also highly rated in 4 other conditions, according to our data. His top areas of expertise are Stridor, Asthma in Children, Respiratory Syncytial Virus Infection, and Vitamin D Deficiency. He is licensed to treat patients in Tennessee and Missouri. Dr. Bacharier is currently accepting new patients.
Published Date: May 27, 2020
Published By: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Griffiths AG. Chronic or recurrent respiratory symptoms. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 401.
Rose E. Pediatric respiratory emergencies: upper airway obstruction and infections. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 167.