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Purple Nails

How Chinese medicine differentiates purple or dusky nails — distinct from Brittle Nails and Cold Hands already covered — the five patterns you'll actually meet in practice, and the points for each. Acupuncture only — no herbs.

This page is educational, for practitioners and students — it is not a diagnostic tool and does not replace a proper in-person assessment. Sudden purple nail discoloration with chest pain or breathlessness is a medical emergency and needs immediate evaluation before assuming it is a simple pattern.
General Acupuncture Points

Acupuncture points traditionally used for purple or dusky nails — 9 key points, used across the patterns below rather than tied to just one.

PointKey action
LR-3Soothes Liver-Qi, moves Blood.
SP-10Invigorates Blood, removes stasis.
L.I.-4Moves Qi throughout the body.
SP-6Harmonizes Blood, supports the Liver.
BL-15Tonifies Heart-Yang.
HT-7Calms the spirit, regulates the Heart.
P-6Opens the chest, relieves stuffiness.
ST-36Tonifies Qi and Yang.
REN-4Warms foundational Yang.
BL-23Tonifies Kidney-Yang directly.
DU-4Warms the Gate of Life, spreads Yang warmth.
KI-3Gently builds and stabilizes Kidney-Yang and Yin.
The Five Patterns

↑ reinforcing   ↓ reducing   ⊥ even method.

1. Qi and Blood Stagnation View full pattern →

Clinical manifestations: Purple or dusky nails with a bluish tinge, chest distension or oppression, irritability and mood swings, fixed stabbing pain potentially worsened by pressure.
Tongue: Purple or dark body with stasis spots, distended sublingual veins, thin white coat. Pulse: Wiry and choppy.
Treatment principle: Move both Qi and Blood, opening the chest and dispersing stagnation.
Note: no moxa. Matches this site's Liver-Blood stasis slide — a purple/dark tongue with stasis spots is the same discoloration marker named there.

2. Heart-Yang Deficiency View full pattern →

Clinical manifestations: Cold hands and feet, palpitations worsening with exertion, bright pale complexion, chest stuffiness, fatigue and low energy.
Tongue: Pale, puffy, tender with teeth marks and a white slippery coating. Pulse: Deep, weak, especially at left Cun, may be knotted.
Treatment principle: Warm and strengthen Heart-Yang, calm palpitations.
Note: moxa applicable throughout. Direct match with this site's own Heart-Yang-deficiency slide.

3. Kidney-Yang Deficiency View full pattern →

Clinical manifestations: Purple or bluish nail beds feeling cold, deep cold sensation in the lower back and knees, frequent nighttime urination, overwhelming fatigue with a desire to rest, cold feet and legs exceeding other body areas.
Tongue: Pale, puffy, tender with teeth marks, wet white coating. Pulse: Deep, slow and weak, especially feeble at the rear positions.
Treatment principle: Tonify Kidney-Yang, warm the Gate of Life Fire, dispel internal Cold.
Note: moxibustion strongly indicated throughout. Direct match with this site's own Kidney-Yang-deficiency slide.

4. Damp-Phlegm

Clinical manifestations: Heavy sensation in the body and limbs, chest stuffiness or oppression, brain fog, copious white easily expectorated phlegm, nausea or poor appetite.
Tongue: Pale, swollen body with scalloped teeth marks and a thick white greasy coating that looks oily. Pulse: Slippery, like beads rolling through oil, may feel slightly soggy.
Treatment principle: Dry Dampness and transform Phlegm, regulate Qi, harmonize the middle burner.
Note: no moxa. No deck on this site has a combined Damp-Phlegm category outside the Lungs, a confirmed and recurring absence, so no pattern link is given here.

5. Blood Stagnation View full pattern →

Clinical manifestations: Fixed stabbing pain worsening at night, dark menstrual blood with clots, dusky or dark facial complexion, typically follows trauma, surgery, or prolonged illness.
Tongue: Dark purple or dusky body with stasis spots, distended dark sublingual veins, thin white coat. Pulse: Choppy or wiry.
Treatment principle: Invigorate Blood and dispel stasis, move Qi and alleviate pain.
Note: no moxa. Same underlying Liver-Blood-stasis slide as pattern 1 — the source distinguishes a Qi-and-Blood-stagnation variant from a pure Blood-stagnation variant, but this site's single Liver-Blood-stasis slide covers both.
Related conditions

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