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Tongue with Little or No Coating

How Chinese medicine differentiates a bare or thin-coated tongue into the 6 patterns behind it, organ by organ, and the points for each. Distinct from this site's Coated Tongue page (its mirror-image finding). Acupuncture only β€” no herbs.

A sudden, completely bare, deep-crimson tongue with a high fever, confusion, severe weight loss, or unexplained bleeding needs urgent medical evaluation, not self-care.
General Acupuncture Points

Acupuncture points traditionally used for a tongue with little or no coating β€” 3 key points, used across the patterns below rather than tied to just one.

PointKey action
KI-3Tonifies the Kidneys (both Yin and Yang). Strengthens the Kidney’s receiving of Qi. Calms the Mind.
SP-6Strengthens the Spleen. Resolves Dampness. Promotes the function of the Liver and the smooth flow of Liver-Qi.
BL-23Tonifies the Kidneys and nourishes the Kidney-Essence. Consolidates Kidney-Qi. Strengthens the lower back.
The Six Patterns

↑ reinforcing   ↓ reducing   ⊥ even method.

1. Empty-Heat caused by Yin Deficiency

Clinical manifestations: Afternoon or evening heat sensations, night sweats with five-palm heat, dry mouth and throat with a desire for sips, flushed cheekbones, restlessness and poor sleep, palpitations worse at night.
Tongue: Red, thin, dry with cracks, little or no coating. Pulse: Fine and rapid, may feel weak or hollow on deep pressure.
Treatment principle: Nourish Yin while directly cooling the deficiency-fire that scorches the tongue.
Note: Confirmed absent again: no deck on this site carries a generic, non-organ-specific Empty-Heat-from-Yin-Deficiency category.

2. Stomach Yin Deficiency View full pattern →

Clinical manifestations: Gnawing or dull burning stomach pain, hunger without appetite, dry mouth and throat with a preference for sipping, dry stools or constipation.
Tongue: Red, thin, dry at the centre, little or no coating, possible cracks. Pulse: Fine and rapid.
Treatment principle: Replenish Stomach fluids, generate moisture, restore digestive lubrication.

3. Heart Yin Deficiency View full pattern →

Clinical manifestations: A red tongue tip, palpitations worse at night, insomnia with vivid disturbing dreams, night sweats with five-palm heat, mental restlessness and being easily startled, possible mouth or tongue sores.
Tongue: Red, redder at the tip, little or no coating, possible midline crack, dry. Pulse: Fine and rapid, left Cun weak at depth.
Treatment principle: Nourish Heart-Yin, calm the mind, clear empty-heat.

4. Kidney and Liver Yin Deficiency View full pattern →

Clinical manifestations: Sore weak lower back and knees, dizziness and tinnitus, dry eyes with blurred vision, night sweats with five-palm heat.
Tongue: Red, thin with cracks, little or no coating, dry, scanty at the root. Pulse: Fine and rapid, often wiry, left Chi weak.
Treatment principle: Rebuild foundational fluid reserves, clear subtle deficiency-heat, brighten vision.

5. Lung Yin Deficiency View full pattern →

Clinical manifestations: A dry cough with minimal phlegm, a dry scratchy throat and mouth, a low-grade afternoon fever, night sweats, a hoarse or weak voice.
Tongue: Red, thin, dry, scanty or no coating especially at the front. Pulse: Fine and rapid, weak at the right Cun.
Treatment principle: Nourish Lung-Yin, generate fluids, stop the dry cough, clear deficiency-heat.

6. Heat in the Ying Level

Clinical manifestations: A fever that worsens at night, mental restlessness or confusion, faint reddish skin rashes β€” a medical-emergency presentation requiring immediate professional care.
Tongue: Deep crimson, dry, little or no coating, possible red prickles at the tip. Pulse: Fine and rapid.
Treatment principle: Clear heat from the Nutritive and Blood levels, nourish depleted Yin, vent pathogenic heat outward.
Note: Confirmed absent again: no deck on this site carries a Ying-level Warm-Disease category β€” flagged here, as with this batch's other classical-stage patterns, as a genuine gap rather than an oversight.
Related conditions

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