What causes red tongue?

Red tongue coating may be caused by excessive heat in the body, excessive yin fire, poor qi and blood or other diseases. It needs to be comprehensively judged and treated.

Red tongue coating may be caused by a variety of reasons. The following are some common reasons:

excessive heat in the body: if there is heat evil in the body, such as excessive stomach fire, excessive lung heat

, etc.

, it may lead to red tongue coating

.