Gingival Inflammation in Traditional Chinese Medicine

Choppy (Se), Full (Shi), Deep (Chen), Rapid (Shu)

The tongue is typically reddish-purple, reflecting the combination of Heat (redness) and Blood Stasis (purple hue). Stasis spots or ecchymoses may be visible on the tongue body, particularly towards the root, which corresponds to the lower body. The sublingual veins are often distended, dark, and tortuous, which is one of the most reliable signs of Blood Stasis. The coating tends to be yellow and dry, reflecting interior Heat consuming fluids. In severe or prolonged cases, the tongue surface may appear dry with prickles, indicating intense Heat scorching the Blood.

Deep (Chen), Slow (Chi), Tight (Jin)

The tongue is characteristically pale and swollen, reflecting the Cold congealing Yang and impairing fluid metabolism. The coating is white, moist, and slippery, indicating Cold and accumulated fluids in the interior. Teeth marks along the edges suggest the Spleen Yang is struggling to transport and transform fluids, leading to a puffy tongue body. There is no redness, dryness, or yellow coating, which would suggest Heat. In more severe cases the tongue may take on a slightly bluish tint, particularly at the root, reflecting deeper Cold penetration.

Floating (Fu), Slippery (Hua)

Fine (Xi), Rapid (Shu)

The classic Kidney Yin Deficiency tongue is red, thin, and dry, with little or no coating. The coating is often completely absent or appears peeled in patches (geographic tongue). Cracks may be visible on the tongue surface, reflecting long-term fluid depletion. In milder cases the tongue may still have a thin coating, but it will appear dry and insufficient. The redness tends to be deeper towards the root of the tongue (the Kidney area in tongue diagnosis). The overall impression is of a tongue that looks "dried out" compared to a healthy, moist, lightly coated tongue.