Learn about the symptoms, causes and treatment for this common swelling of the voice box.
Update Date: 20.09.2025
Laryngitis is a type of swelling called inflammation that affects the voice box. The medical name for the voice box is the larynx. The larynx can become inflamed from overuse, irritation or infection.
Inside the larynx are the vocal cords. These two bands of muscle tissue give you your voice. When they're healthy, the vocal cords open and close smoothly. They make sounds through their movement and vibration. But with laryngitis, the vocal cords become inflamed. This distorts the sounds made by air passing over them. As a result, the voice sounds hoarse. Some people with laryngitis lose their voices for a time.
Most often, laryngitis lasts for a short while. This is called acute laryngitis. A mild infection from a virus usually causes it, such as a cold or the flu. Or laryngitis can be longer-lasting, also called chronic. Some health conditions and irritating substances such as smoke can cause it.
Treatment of acute laryngitis often involves self-care or resting the voice. With chronic laryngitis, an underlying cause may need to be treated with medicine or lifestyle changes.
Help prevent laryngitis with steps such as handwashing to lower the risk of colds and other viral infections. Stay away from smoke or chemical fumes. And try not to shout or sing loudly often.
Laryngitis affects the voice. It also can cause other symptoms. Laryngitis symptoms can include:
These symptoms usually last less than 2 to 3 weeks.
Less often, laryngitis symptoms are caused by something more serious or long lasting. If a serious infection causes laryngitis, a person also may have symptoms such as:
Make an appointment with your healthcare professional if your voice is hoarse for 2 to 4 weeks. Also make an appointment if you have serious changes in your voice that last more than a few days.
These can be symptoms of an upper airway infection called croup. They also can be symptoms of a life-threatening condition called epiglottitis. With epiglottitis, the small cartilage lid that covers the windpipe becomes swollen and blocks the airway.
Two types of laryngitis exist, and their causes can vary.
Acute laryngitis tends to last less than three weeks. Most often, viruses that infect the sinuses and throat cause this type of laryngitis. For example, acute laryngitis is common with colds and the flu. Vocal strain is another common cause of acute laryngitis.
Rarely, infections from germs called bacteria cause acute laryngitis.
Chronic laryngitis lasts longer than three weeks. It can lead to vocal cord changes over time. It also can cause growths on the vocal cords called polyps or nodules.
Things that irritate the larynx can cause chronic laryngitis These irritants include:
Less common causes of chronic laryngitis include infections from bacteria, fungus or some parasites.
Acute and chronic laryngitis have some causes in common. These include:
Other causes of ongoing hoarseness include:
Risk factors for laryngitis include:
If a serious infection causes laryngitis, the infection could spread to other tissues or organs that help you breathe.
To prevent drying out or irritating your vocal cords:
To find out if laryngitis is the cause of your symptoms, your healthcare professional reviews your medical history and symptoms. Your healthcare professional also may listen to your voice and check your vocal cords.
If your symptoms are serious or long lasting, you might be referred to an ear, nose and throat doctor called an otolaryngologist. This healthcare professional may use the following tests to find out if you have laryngitis or another condition:
Treatment partly depends on whether you have acute or chronic laryngitis.
Acute laryngitis often gets better on its own within three weeks. In the meantime, the following self-care measures can help ease your symptoms:
Chronic laryngitis may have an underlying cause that needs to be treated or managed with lifestyle changes. Examples include:
Medicines that sometimes are used to treat laryngitis include:
A treatment called voice therapy also may help for laryngitis. A healthcare professional called a speech-language pathologist teaches you ways to protect your voice.
Sometimes, surgery is a treatment choice for chronic laryngitis. For instance, chronic laryngitis can lead to growths on the vocal cords that cause hoarseness. Some growths may need to be removed with surgery.
Some self-care methods and home treatments may relieve the symptoms of laryngitis and strain your voice less:
You're likely to start by seeing your family healthcare professional. You may be referred to a doctor called an otolaryngologist who is trained in ear, nose and throat conditions.
Here's some information to help you get ready for your appointment.
Writing down a list of questions for your healthcare professional helps you make the most of your time together. For laryngitis, some basic questions to ask include:
Feel free to ask any other questions.
Your healthcare professional is likely to ask you questions such as:
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