The cause of white plaque on the tongue

A healthy tongue condition is usually reddish with a small bulge on its surface (called papil). White surface on the tongue can be affected by food scraps, but can also be caused by abnormalities, such as:


yeast infection (oral candidiasis), white or reddish tongue accompanied by pain or burning sensation, more common in elderly, diabetic patients or HIV / AIDS
Oral lichen planus: white patches on the tongue with discomfort
leukoplakia; white spots or plaques on the tongue are hard to scrape, often occurs in alcohol drinkers and smokers

Here's an advice for you:

maintain oral health
avoid irritating foods and drinks, such as hot food
avoid alcohol and do not smoke