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Xiabai (LU-4), “Guarding White”, descends Lung qi and regulates the heart and chest, and is used for cough and fullness of the chest.
Location
On the anterolateral aspect of the upper arm, 4 cun inferior to the anterior axillary fold (1 cun inferior to LU-3), on the radial side of the biceps brachii muscle.
Anatomy
Biceps brachii muscle; the cephalic vein and branches of the brachial artery; the lateral antebrachial cutaneous nerve and the musculocutaneous nerve.
Actions & Functions
- Descends and regulates Lung qi
- Regulates the heart and chest
Indications
Cough, asthma, fullness and oppression of the chest, and pain of the inner arm.
Needling
0.5-1.0 cun, perpendicular insertion.
Moxibustion Suitability
Suitable for moxibustion.
Point Combinations
With LU-1 for cough and chest oppression.
Classical Text References
Indicated in the classical literature for fullness of the chest and cardiac discomfort with rebellious qi.
Cautions & Contraindications
Avoid the brachial artery.
Latest Research
Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.