SP18

Tianxi

Star

天谿 (Tiānxī) — Celestial Ravine

Spleen channel · point 18

Traditionally used for

  • Cough & breathing
  • Menstrual & women's health
  • Heart & circulation

Cautions & contraindications

  • Shallow needling only

Location

On the lateral chest, in the fourth intercostal space, 6 cun lateral to the anterior midline.

Fig. — SP18 · Chest
The thorax, from in front — Gray's Anatomy plate
The thorax, from in front Gray's Anatomy, 1918

Needling

  • Shallow needling only
Depth: 0.3–0.5 cun
Angle: Oblique or transverse
⚠ Cautions: Pneumothorax risk on deep perpendicular insertion.

Functions

  • Benefits the breast and promotes lactation
  • Regulates qi in the chest

Indications

Insufficient lactation and mastitisbreast paincough and chest pain

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