Laryngoscopy is the visual exam of the voice box, also called the larynx, and the vocal cords. It can be done as:
Both procedures are usually done in the office.
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Laryngoscopy is used to examine and diagnose problems inside the throat. It is most often done:
Problems from the procedure are rare, but all procedures have some risk. Your doctor will review potential problems, like:
After a physical exam, you may have the following imaging tests:
Leading up to your procedure:
Talk to your doctor about your medications. You may be asked to stop taking some medications up to one week before the procedure.
Local or general anesthesia may be used for a laryngoscopy. Local anesthesia will numb the throat. With general anesthesia, you will be asleep.
During either type of laryngoscopy, photographs may be taken.
You will sit up straight in a high-back chair. A headrest will push your head and jaw forward. The anesthesia will be sprayed into your throat. Your tongue will be covered with gauze and held by the doctor. You will then need to breathe through your mouth as if panting. A warm mirror will be held at the back of the throat. The doctor will ask you to make a specific sound and watch the larynx. If there is a foreign object, such as a chicken bone, it can be removed.
The direct method is most often done after the indirect method. The direct method will allow the doctor to see a greater area. The direct method may also be used if your gag reflex did not allow a thorough exam during the indirect method. A special scope will be inserted through your nose or mouth and into your throat. The larynx will be examined through an eyepiece on the scope. The doctor may then collect specimens, remove growths, or retrieve a foreign object trapped in the throat. This method is often done in the operating room under general anesthesia or in the office under local anesthesia.
An indirect laryngoscopy only takes a few minutes. A direct laryngoscopy takes about 5–45 minutes, depending on the problem.
Anesthesia will prevent pain during the procedure. With a direct method, you may have a sore throat for a few days if a biopsy was done.
If any tissue was removed, it will be sent to be examined.
Be sure to follow your doctor's instructions, which may include:
The doctor may discuss the results and treatment options or refer you to a specialist. Biopsy results may take about 3-5 days.
It is important for you to monitor your recovery after you leave the care center. Alert your doctor to any problems right away. If any of the following occur, call your doctor:
If you think you have an emergency, call for medical help right away.
American Academy of Otolaryngology—Head and Neck Surgery
American Cancer Society
Canadian Digestive Health Foundation
Laryngoscopy. Nemours Kids Health website. Available at: http://kidshealth.org/parent/system/surgery/laryngoscopy.html. Updated March 2013. Accessed May 23, 2014.
Laryngoscopy and biopsy. NetDoctor website. Available at: http://www.netdoctor.co.uk/surgical-procedures/laryngoscopy-and-biopsy.htm. Updated July 6, 2009. Accessed May 23, 2014.
Last reviewed June 2015 by Michael Woods, MDLast Updated: 5/23/2014