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Taiyuan (LU-9), “Supreme Abyss”, is the Yuan-Source and Shu-Stream point of the Lung and the Influential (Hui-meeting) point of the vessels. It is the principal point for tonifying the Lung and for regulating the vessels and pulse.
Location
At the wrist, on the radial side of the transverse wrist crease, in the depression between the radial styloid process and the scaphoid bone, lateral to the radial artery.
Anatomy
Lateral to the radial artery; the lateral antebrachial cutaneous nerve and the superficial branch of the radial nerve.
Actions & Functions
- Tonifies the Lung and Lung qi
- Transforms phlegm
- Regulates and harmonises the vessels (Influential point of the vessels)
- Benefits the pulse
Indications
Cough, asthma, Lung qi and yin deficiency, disorders of the blood vessels and circulation, a weak or absent pulse, and pain of the wrist.
Needling
0.2-0.3 cun, perpendicular insertion, avoiding the radial artery.
Moxibustion Suitability
Suitable for moxibustion to tonify and warm the Lung in deficiency.
Point Combinations
With LU-1 and BL-13 to tonify Lung qi; with ST-40 to transform phlegm.
Classical Text References
The Yuan-Source, Shu-Stream (Earth) point and tonification point of the Lung, and the Influential point of the vessels.
Cautions & Contraindications
The radial artery lies immediately medial; needle on the radial side to avoid it.
Latest Research
Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.