LU4 (Xiabai, “Clasping the White”) is an acupuncture point on the Lung Channel of Hand Taiyin Meridian. It is located on the anterolateral aspect of the upper arm, on a line connecting LU3 (Tianfu) and LU5 (Chize), 4 cun superior to the cubital crease, or 5 cun inferior to the anterior axillary fold, in the depression on the lateral side of the biceps brachii muscle. It regulates Lung Qi, soothes the chest, and alleviates pain.
On the anterolateral aspect of the upper arm, on a line connecting LU3 (Tianfu) and LU5 (Chize), 4 cun superior to the cubital crease, or 5 cun inferior to the anterior axillary fold, in the depression on the lateral side of the biceps brachii muscle.
Perpendicular insertion 0.5 to 1 cun.
Regulates Lung Qi, soothes the chest, and alleviates pain.
Heart pain, shortness of breath, dry heaving, vexation and fullness, cough.
Xiabai is located on the upper arm and is primarily used for local issues and conditions related to Lung Qi rebellion. Its classical indications point to its use for chest discomfort, such as heart pain and shortness of breath, as well as digestive upset like dry heaving. It is also indicated for cough with a sense of fullness and vexation in the chest.
Classical text; the translation was prepared with AI and is not clinical advice.
《針灸甲乙經》 Zhēnjiǔ Jiǎyǐ Jīng — Systematic Classic of Acupuncture & Moxibustion, c. 256–282 · 卷03 · Source: Wikisource ↗
俠白，在天府下，去肘五寸動脈中，手太陰之別，刺入四分，留三呼，灸五壯According to this text, LU4 lies below Tianfu, 5 cun from the elbow at the pulsing vessel, and is a divergence of the hand Taiyin; it is needled 4 fen with the needle retained for three breaths, and receives 5 moxa cones.
《醫學入門》 Yīxué Rùmén — Introduction to Medicine, Li Chan, 1575 · 经穴起止 · Source: Wikisource ↗
侠白天府下去肘五寸动脉。 灸五壮。 主咳逆，干呕，烦满，心痛According to this text, LU4 lies below Tianfu, 5 cun from the elbow at the pulsing vessel, and receives 5 moxa cones; it was used for cough with counterflow, dry retching, vexation and fullness, and heart pain.
LU4 is one of 11 points on the Lung Channel of Hand Taiyin Meridian. Nearby points:
LU4 (Xiabai) is located on the anterolateral aspect of the upper arm, on a line connecting LU3 (Tianfu) and LU5 (Chize), 4 cun superior to the cubital crease, or 5 cun inferior to the anterior axillary fold, in the depression on the lateral side of the biceps brachii muscle.
LU4 regulates Lung Qi, soothes the chest, and alleviates pain. Common clinical indications include heart pain, shortness of breath, dry heaving, vexation and fullness, cough.
Perpendicular insertion 0.5 to 1 cun.
LU4 is a point on the Lung Channel of Hand Taiyin Meridian (Shǒu Tàiyīn Fèijīng).