What does burning mouth syndrome feel like?
People describe it as if they have scalded their tongue, with the burning most often on the tip and sides of the tongue, but also the lips, gums or palate. It can come with a dry or sticky mouth, a bitter or metallic taste, or numbness and tingling. Often it is mild in the morning and builds through the day.
Doctors use the term burning mouth syndrome when there is nothing visible to explain the pain, such as an ulcer or patch. It is more common in women after menopause.
What causes a burning mouth?
A number of things can cause the same feeling, and finding one matters because it can be treated. These include a dry mouth (often from medicines), low iron, vitamin B12 or folate, thrush, diabetes, a reaction to toothpaste, mouthwash or denture materials, acid reflux, and teeth grinding or tongue thrusting. A rough tooth or ill-fitting denture can also irritate the tongue.
When none of these is found, the cause is thought to involve how the nerves that carry taste and pain signals behave, and stress and poor sleep can make it worse. Low B12 and iron are explained in mouth ulcers and vitamin deficiency, a sore red tongue in inflammation of the tongue, and yeast in tongue infection. Our guide to a bitter taste in the mouth and a metallic taste in the mouth cover related symptoms. Read about dry mouth if your mouth also feels parched.
| Possible cause | Clue | What a dentist or doctor may do |
|---|---|---|
| Dry mouth | Sticky mouth, thirst, taste change | Review medicines, find the cause |
| Nutrient shortage | Smooth sore tongue, tiredness, repeated ulcers | Blood tests, then correct the shortage |
| Thrush | White patches, soreness under a denture | Examine, then prescribe treatment |
| Product or denture reaction | Started after a new product or denture | Switch the product or adjust the denture |
| No cause found | Normal-looking mouth, burning all day | Support, trigger control, and prescribed medicine if needed |
Common reasons for a burning mouth and how each is usually sorted out. General information, not a diagnosis.
How to ease burning mouth syndrome
Avoid the things that sting: hot, spicy and acidic food and drink, tobacco, paan, alcohol-based mouthwash and strongly flavoured or whitening toothpaste. Sip water often, and sucking an ice chip or drinking something cool can calm a flare. Brush gently with a soft brush and a mild toothpaste.
Persistent burning needs a proper assessment, not guesswork. Your dentist or doctor may order blood tests, check for infection and dryness, and may prescribe medicine if no cause is found. Do not stop or change prescribed medicines on your own, and avoid starting vitamins or antifungals without a test. For sore patches, see our mouth ulcers guide.
When to see a dentist or doctor
See a dentist or doctor if the burning lasts more than a couple of weeks, keeps coming back, or affects eating and sleep. Any ulcer, white or red patch, or lump that has not healed in about two to three weeks needs checking, especially if you smoke or chew gutka, paan or areca nut.
Swelling of the tongue or lips, trouble swallowing or breathing, or a high fever means same-day care, and a hospital emergency department if breathing or swallowing is affected.
Common questions
Is burning mouth syndrome dangerous?
It is not dangerous and not a sign of cancer by itself, but it can be long-lasting and affect quality of life. A check is worthwhile because some causes are easy to treat.
Does burning mouth syndrome go away?
When a cause is found and treated, it often settles. When no cause is found it can last months or years, and some people see it ease over time.
Can vitamin deficiency cause a burning tongue?
Yes. Low iron, vitamin B12 or folate can make the tongue sore and burning. A blood test shows whether a shortage is real before any supplement is taken.
Which doctor should I see for a burning mouth?
Start with a dentist, who can check the teeth, dentures and mouth, or a general doctor for blood tests. They can refer you on if needed.
About this page
This page is general information, not a diagnosis or a quotation. Prices are prevailing Lucknow market ranges. Your own treatment and cost are determined after an examination. For questions about your own case, call +91 83036 12717.