Epiglottitis

ARTICLE SECTIONS

Introduction Signs and symptoms Causes Risk factors When to seek medical advice

Screening and diagnosis Complications Treatment Prevention

Introduction

Epiglottitis is a life-threatening condition that occurs when the epiglottis — a small cartilage "lid" that covers your windpipe — swells, blocking the flow of air into your lungs.

A number of factors can cause the epiglottis to swell — burns from hot liquids, direct injury to your throat, and various infections. The most common cause of epiglottitis is infection with Haemophilus influenzae type b (Hib), the same bacterium that causes pneumonia and meningitis.

Routine Hib vaccination for infants has made epiglottitis uncommon, but it remains a concern. If you suspect that you or someone in your family has epiglottitis, seek emergency help immediately. Prompt treatment can prevent life-threatening complications of epiglottitis.

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Signs and symptoms