LU-9 Taiyuan
LU-9 Taiyuan (太淵) is a point on the Lung meridian. In TCM theory it is described as influencing the channel's qi, and it is traditionally used in the context of the whole pattern rather than as a stand-alone remedy. This page explains how to locate it, what the tradition says about it, and how to press it safely.
Location
At the wrist crease, in the depression between the radial artery and the tendon of the abductor pollicis longus.
How to find it
Lay the palm face up. Feel the pulse on the thumb side of the wrist. The point is the soft hollow just lateral to that artery, at the crease.
Traditional functions
- Yuan-source point of the Lung meridian
- Tonifies lung qi and lung yin
- Benefits the vessels and the voice
Traditional uses
- Cough and shortness of breath in traditional terms
- Dry mouth and throat
- Wrist discomfort
- A weak or quiet voice
How to press it
Use very gentle pressure — the radial artery runs through this area. Two or three slow breaths of light contact is enough.
Acupressure is generally a gentle practice. Use the pad of the thumb or finger, start with light pressure, and increase only to a comfortable level. A mild ache or warmth is common; sharp pain is a signal to ease off.
Safety
Do not press firmly on the artery. Avoid this point if you have a bleeding disorder or are on anticoagulants without professional guidance.
How this is viewed today
LU-9 is used in research protocols for respiratory symptoms and wrist pain. Evidence is preliminary, and the point is usually combined with others.
Sources & further reading
- Huangdi Neijing (黃帝內經), c. 2nd century BCE.
- Nanjing (難經), c. 1st–2nd century CE.
- World Health Organization, Standard Acupuncture Nomenclature, 2nd ed., 1991.
- Deadman P, Al-Khafaji M, Baker K. A Manual of Acupuncture. Journal of Chinese Medicine Publications.
- National Center for Complementary and Integrative Health, Acupuncture: What You Need To Know.
Related: Lung meridian · Acupoint library · LU-7 Lieque · PC-6 Neiguan · HT-7 Shenmen · all twelve meridians