Chapter 27 Severe Spleen-Qi deficiency may manifest with a swelling on the sides of the tongue in the central section (Fig. 27.1). (See also Plate 27.1 on p. P25.) This swelling differs from a Liver swelling in that it is much wider and it is more in the central section of the tongue (Middle Burner). Liver-Blood deficiency is frequently indicated by a Pale colour on the sides in the Liver area. Although the tip corresponds to the Heart, the tip is never Pale on its own in Heart-Blood deficiency; in this condition, however, the tongue may become Pale in the chest area (see Fig. 23.8 p. 205). We can identify several stages of Yin deficiency according to the tongue coating and the body colour. As far as the Stomach is concerned, Stomach-Qi deficiency usually precedes Stomach-Yin deficiency and the very first and lightest sign of Stomach-Qi deficiency would be a rootless coating in the centre. At the other end of the scale, the most severe type of Yin deficiency (by this time with Empty-Heat) would be a tongue that is Red, completely without coating and possibly with cracks indicating both Stomach-Yin and Kidney-Yin deficiency. We can therefore say that the tongue coating or the absence of it reflects a progression from Qi deficiency to Yin deficiency usually starting with the Stomach and gradually affecting other organs. The most common stages of this process that we can identify are as follows:
TONGUE IMAGES AND PATTERNS
QI-DEFICIENCY TONGUES
BLOOD-DEFICIENCY TONGUES
YIN-DEFICIENCY TONGUES