White patches on the tongue are a sign of what disease?

Question
Hello doctor,
Two weeks ago my tongue appeared white patches, the surface was not convex, flat and lost the tongue spines like a normal tongue. I have no pain, no burning, but if it is too hot or spicy, the white areas will have a burning sensation. I clean my teeth thoroughly, scrape my tongue, but it still doesn't go away. The white array does not spread, stays in those positions (including 3 large arrays and 2 small arrays). The doctor asked me, what is the white patch on the tongue a sign of disease? Thank you.
Anonymous customer
Answer
Answered by Master, Doctor Nguyen Vinh Toan - Ear - Nose - Throat Doctor - Interspecialty Department, Vinmec Times City International Hospital.
Hello,
With the question "What disease is the white patch on the tongue a sign of?", the doctor would like to answer as follows:
The surface of the tongue has white patches that can be caused by glossitis because of a lack of some vitamins such as zinc. , vitamin A, vitamin PP, iron or due to local parasites, fungal infections, or the effects of reflux disease. Signs of dangerous disease are increased pain, ulcers on the edge of the tongue, bleeding. With the information as you describe, there are no danger signs on the tongue. You can buy Betadin for the throat area, daily cleaning of the throat. In addition, you should pay attention to supplement with some vitamins and trace elements such as zinc, iron, vitamin PP, vitamin A.
If you still have questions about white patches on the tongue, you can go to the hospital of System Health. Vinmec to check and advise you more. Thank you for trusting and sending questions to Vinmec. Wishing you lots of health.
Best regards!