Discover the common causes of white tongue coating from poor hygiene to fungal infections, plus when this seemingly harmless ...

The color your tongue turns depends on what substance is ... causing scaly, irritated patches. Less commonly, psoriasis ...

Yes, it is possible for frequent or severe acid reflux to cause sore patches, or lesions, in the mouth. These can occur on the gums, tongue, or palate. More common conditions that cause mouth ...

This is because the “cold, nutrient-rich water” of the cold tongue has become a “prosperous patch [that] feeds phytoplankton and breathes life into the archipelago”, said The Atlantic.