Burning mouth syndrome
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What is burning mouth syndrome?
If you have burning mouth syndrome, your mouth feels sore most of the time, as though it's burning.

You may have the feeling in your tongue, your lips, your gums and the inside of your cheeks. People often describe it as feeling like they've scalded their mouth on a hot drink.1

Your doctor will examine your mouth to check that your symptoms aren't caused by another condition.
Your doctor will diagnose burning mouth syndrome only after checking that there's not another reason for the pain. These are some other reasons why your mouth may feel sore:1

  • You have a mouth infection
  • You have an allergic reaction
  • You have a reaction to a drug that you are taking for another illness
  • You're wearing poorly fitting dentures (false teeth)
  • You have a dry mouth because you don't have enough saliva (spit).
If you've been diagnosed as having burning mouth syndrome, it means that your mouth is normal apart from the burning feeling. Some people with burning mouth syndrome are worried that it may be a sign of something serious such as cancer. But before your doctor diagnoses burning mouth syndrome, they will check that it's not cancer, or any other disease.

We don't know for sure why burning mouth syndrome happens. It may be because the nerve endings in your mouth, which allow you to taste and feel, are more sensitive than normal.2 3 4

Your chances of getting burning mouth syndrome are higher if:5

  • You're anxious or depressed
  • You've been having a lot of stress
  • You're a woman who has reached menopause.



Sources for the information on this page:
  1. Zakrzewska JM. The burning mouth syndrome remains an enigma. Pain. 1995; 62: 253-257. 8657425
  2. Svensson P, Bjerring P, Arendt-Nielsen L, et al. Sensory and pain thresholds to orofacial argon laser stimulation in patients with chronic burning mouth syndrome. Clinical Journal of Pain. 1993; 9: 207-215.
  3. Jaaskelainen SK, Forssell H, Tenovuo O. Abnormalities of the blink reflex in burning mouth syndrome. Pain. 1997; 73: 455-460. 9469537
  4. Forssell H, Jaaskelainen S, Tenovuo O, et al. Sensory dysfunction in burning mouth syndrome. Pain. 2002; 99: 41-47. 12237182
  5. Bergdahl M, Bergdahl J. Burning mouth syndrome: prevalence and associated factors. Journal of Oral and Pathological Medicine. 1999; 28: 350-354.
This information was last updated in Feb 28, 2008