Subglottic Stenosis: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Subglottic Stenosis?
A primary care doctor is often the first to notice the problem. The specialist who usually treats subglottic stenosis is an otolaryngologist, a doctor of the ear, nose, and throat, sometimes called an ENT. Complex cases may also involve a thoracic surgeon.
What it is
Subglottic stenosis is a narrowing of the airway just below the vocal cords, in the part of the windpipe called the subglottis. When this area narrows, breathing becomes harder. It can happen in babies, children, or adults.
Symptoms
The most common sign is noisy breathing when breathing in, called stridor. Other symptoms include a high-pitched or weak voice, a lasting cough, and feeling short of breath. Symptoms depend on how narrow the airway is and often get worse slowly over time.
Causes and who gets it
Subglottic stenosis can be present at birth, which doctors call congenital. More often, it develops later in life. Common causes include a breathing tube placed in the windpipe for a long time, injuries, infections like tuberculosis, acid reflux that reaches the throat, and certain immune diseases. Sometimes no cause is found.
How doctors diagnose it
Doctors listen to your breathing and may use a laryngoscopy, a thin, flexible tube with a camera, to look at the voice box and the airway below it. Imaging scans can measure how narrow the airway is.
Treatment
Treatment depends on how narrow the airway is. Mild cases may only need regular checkups, and doctors often treat acid reflux, which can irritate the healing airway. For more severe narrowing, options include endoscopic procedures, in which a doctor stretches the airway open or removes scar tissue with a scope. Some people need surgery to widen the airway.
When to see a doctor
See a doctor if you have noisy breathing, a lasting change in your voice, or shortness of breath that does not go away. Get emergency care right away if you are struggling to breathe or your lips or fingertips look blue.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either one can spend extra time managing mild cases, treating reflux, and following your breathing over time. If the narrowing is moderate or severe, they will refer you to an ENT.
Common questions
Is subglottic stenosis dangerous?
It can be, if the airway becomes very narrow. Mild cases may cause few problems. Severe cases can block breathing and need treatment. Doctors grade the narrowing to help decide what to do.
Can it go away on its own?
Scar tissue in the airway usually does not shrink on its own. Mild narrowing may stay stable for years. Many people need some form of treatment. Results differ from person to person.
Why does a breathing tube cause this?
A tube sitting in the windpipe can press on the lining and cause irritation. Over time, that irritation can turn into scar tissue. The scar tissue makes the airway narrower. The risk goes up the longer the tube stays in place.
Can children outgrow it?
Some children with mild narrowing caused by a breathing tube improve as they grow. This is because the airway gets bigger. More severe narrowing usually needs treatment from a specialist. Each child is different, so doctors follow them closely over time.
Sources
- National Organization for Rare Disorders (NORD) - Idiopathic Subglottic Stenosis
- MedlinePlus - Tracheostomy - series-Indications: MedlinePlus Medical Encyc
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
