Stomach 23 (ST 23) Tai Yi — Supreme Unity

This point, on the upper abdomen, harmonises the middle burner and calms the spirit.

Stomach 23 (ST 23) Tai Yi 太乙 — Supreme Unity

Location

On the upper abdomen, 2 cun superior to the umbilicus, 2 cun lateral to the anterior midline.

Anatomy

On the rectus abdominis; the inferior epigastric artery; the ninth intercostal nerve.

Actions & Functions

  • Harmonises the middle burner and the Stomach
  • Calms the spirit and clears phlegm-heat

Indications

Stomach pain, indigestion, irritability and mental restlessness, and mania.

Needling

0.5-1.0 cun, perpendicular insertion.

Moxibustion Suitability

Moxibustion may be used.

Point Combinations

With ST-40 and HT-7 for mental-emotional disorders with phlegm.

Classical Text References

Used for digestive and mental-emotional disorders.

Cautions & Contraindications

None specific.

Latest Research

Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

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PubMed research

Acupuncture Shows Sustained Benefits for Chronic Daily Headache Prevention in Adults, Meta-Analysis Finds

Research summary (Acupuncture): Utility of Acupuncture Therapy for Adult Chronic Daily Headache Prophylaxis: A Systematic Review and Meta-Analysis. - Medical science monitor : international medical journal of experimental and clinical research, 2026.