LU9 (Taiyuan, “Taiyuan”) is the Shu-Stream Point point of the Lung Channel of Hand Taiyin Meridian. It is located on the palmar aspect of the wrist, at the transverse wrist crease, in the depression on the radial side of the radial artery. It tonifies Lung Qi and Yin, resolves phlegm, descends Lung Qi, regulates and harmonizes the hundred vessels, stops cough, and alleviates pain.
On the palmar aspect of the wrist, at the transverse wrist crease, in the depression on the radial side of the radial artery.
Perpendicular insertion 0.2-0.3 cun. Careful attention must be paid to avoid the radial artery, which should be palpated and moved laterally before needle insertion.
Tonifies Lung Qi and Yin, resolves phlegm, descends Lung Qi, regulates and harmonizes the hundred vessels, stops cough, and alleviates pain.
Chest Bi with rebellious qi, belching, vomiting of food, cough, inability to sleep due to vexation, lung distension, pain on the inner aspect of the arm, white opacity of the eye, red and painful eyes, eye twitching, alternating chills and fever, pain in the supraclavicular fossa, heat in the palms, frequent yawning, shoulder and back pain and cold, wheezing, inability to breathe, upwardly rebellious qi, heart pain with a choppy pulse, coughing blood, vomiting blood, shivering, dry throat, delirious speech, changes in urine color, sudden and frequent incontinence, breast abscess (mastitis), stomach qi rebellion, spitting blood, heat disease with sweating,reversal heart pain.
As the Yuan-Source point of the Lung and the Influential point of the Vessels, Taiyuan is a primary point for tonifying Lung Qi and for treating all manner of vessel and pulse disorders. Its location at the radial artery underscores its function in regulating the pulse, making it essential for addressing a weak Lung pulse or a choppy pulse from heart pain. Clinically, it is used for both excess and deficiency patterns of the Lung, such as chronic cough from deficiency or acute wheezing, and is also effective for stopping bleeding from the Lung.
Classical text; the translation was prepared with AI and is not clinical advice.
《鍼灸聚英》 Zhēnjiǔ Jùyīng — Gathering of Eminent Acupuncturists, Gao Wu, 1529 · Source: Wikisource ↗
太淵（穴在掌後陷中It is located in the depression behind the palm, according to this text.
《類經》 Lèijīng — Classified Canon, Zhang Jiebin, 1624 · 二十八卷·运气类 · 四十三、十二脏神失守位邪鬼外干之刺 · Source: Wikisource ↗
用长针，口中温之，以
手按穴，刺入三分，留三呼，动气至，徐徐出针，以手扪其穴According to this text, at LU9 a long needle was warmed in the mouth, the point pressed with the hand, the needle inserted 3 fen and retained three breaths until the qi moved, then slowly withdrawn and the point pressed closed.
《子午流注針經》 Zǐwǔ Liúzhù Zhēnjīng — Needling Classic of the Midday-Midnight Flow, Yan Mingguang, c. 1153 · 卷下 · 針經井滎歌訣 · Source: jicheng.tw ↗
太淵肺俞掌後尋，嘔吐咳嗽腹膨膨，
眼目赤筋白翳膜，心疼氣上一般針The text records in verse that LU9, sought behind the palm, was needled for vomiting, cough, abdominal distension, red-veined eyes with white screens, heart pain and rising qi.
《醫宗金鑑·刺灸心法要訣》 Yīzōng Jīnjiàn · Cìjiǔ Xīnfǎ Yàojué — Golden Mirror of Medicine: Essential Teachings on Acupuncture & Moxibustion, Wu Qian et al., 1742 · 卷一 · 十二經表裡原絡總歌 · Source: jicheng.tw ↗
如手太陰肺經病，可刺本經里之原穴，即太淵穴也The text records that for disorders of the hand Taiyin lung channel one may needle the source (yuan) point of this interior channel, namely LU9.
LU9 is one of 11 points on the Lung Channel of Hand Taiyin Meridian. Nearby points:
LU9 (Taiyuan) is located on the palmar aspect of the wrist, at the transverse wrist crease, in the depression on the radial side of the radial artery.
LU9 tonifies Lung Qi and Yin, resolves phlegm, descends Lung Qi, regulates and harmonizes the hundred vessels, stops cough, and alleviates pain. Common clinical indications include chest Bi with rebellious qi, belching, vomiting of food, cough, inability to sleep due to vexation, lung distension, pain on the inner aspect of the arm, white opacity of the eye, red and painful eyes, eye twitching, alternating chills and fever, pain in the supraclavicular fossa, heat in the palms, frequent yawning, shoulder and back pain and cold, wheezing, inability to breathe, upwardly rebellious qi, heart pain with a choppy pulse, coughing blood, vomiting blood, shivering, dry throat, delirious speech, changes in urine color, sudden and frequent incontinence, breast abscess (mastitis), stomach qi rebellion, spitting blood, heat disease with sweating,reversal heart pain.
Perpendicular insertion 0.2-0.3 cun. Careful attention must be paid to avoid the radial artery, which should be palpated and moved laterally before needle insertion. Caution: Adjacent to the radial artery — palpate and avoid the vessel; do not needle into a pulsating artery.
LU9 is a point on the Lung Channel of Hand Taiyin Meridian (Shǒu Tàiyīn Fèijīng).