Seven causes of a green tongue

[Travis]

It is common to have a green tongue after eating or drinking something containing green food coloring, but an unexplained green tongue can indicate an underlying health concern. In this article, we look at infections and other conditions that cause a green coating or discoloration. We also look at the treatment options

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[CatamountRob]

How gangrene tongue left me speechless.

 

[rkm rdt]

Sevan causes green tongue?