LU8 Jing-River Gutter

Reviewed by · Licensed Acupuncturist & TCM Physician · Last reviewed June 2026

LU8 (Jingqu, “Jing-River Gutter”) is the Jing-River point point of the Lung Channel of Hand Taiyin Meridian. It is located on the palmar aspect of the forearm, 1 cun proximal to the transverse wrist crease (Taiyuan, LU-9), in the depression on the radial side of the radial artery. It descends Lung Qi, clears Lung heat, regulates Qi and blood, harmonizes the five viscera.

Location

On the palmar aspect of the forearm, 1 cun proximal to the transverse wrist crease (Taiyuan, LU-9), in the depression on the radial side of the radial artery.

Needling

Perpendicular or oblique insertion 0.1-0.3 cun, avoiding the radial artery. It is crucial to palpate the artery and needle to the side of it.

Adjacent to the radial artery — palpate and avoid the vessel; do not needle into a pulsating artery. Moxibustion is strictly forbidden as it is said to damage the spirit. The Jia Yi Jing also lists it among the points on which moxibustion is prohibited.

TCM functions

Descends Lung Qi, clears Lung heat, regulates Qi and blood, harmonizes the five viscera.

Indications

Cough, shortness of breath, wheezing, asthma, chest fullness, chest and back tension, chest and back pain, sudden paralysis, heart pain, vomiting, heat in the palms, sore throat, fever and chills, absence of sweating in febrile disease, elbow pain, malaria.

Jing-River pointMetal point

Clinical notes

As the Jing-River and Metal point of the Lung channel, Jingqu is a key point for treating acute respiratory conditions involving cough, wheezing, and chest fullness. Its ability to descend Lung Qi makes it effective for rebellious Qi patterns like asthma and vomiting. The classical emphasis on its role in regulating Qi and blood, and its location at the radial pulse, highlights its importance in addressing systemic imbalances reflected in the pulse.

In the classical sources

Classical text; the translation was prepared with AI and is not clinical advice.

《針灸大成》 Zhēnjiǔ Dàchéng — Great Compendium of Acupuncture & Moxibustion, 1601 · 卷八 · Source: Wikisource ↗

經渠 寸口動脈陷中,肺脈所行,為經金,針入二分,留二呼,禁灸,灸傷神明

According to this text, LU8 lies in the depression at the pulsing vessel of cunkou (the wrist pulse), where the lung vessel 'travels', and is the jing-river metal point; it is needled 2 fen, retained two breaths, and moxibustion is forbidden because it would harm the 'shenming' (spirit brightness).

《針方六集》 Zhēnfāng Liùjí — Six Collections on Needling, Wu Kun, 1618 · 卷之一·神照集 · 手太陰肺經圖穴八 · 手太陰肺經所發十一穴 · Source: jicheng.tw ↗

經渠二穴,金也。 在寸口陷中,手太陰之所行也,為經。 《針經》刺入三分,留三呼。 禁不可灸,灸之傷人神明

According to this text, LU8 (two points, metal) lies in the depression at cunkou, where the hand Taiyin 'travels', as the jing-river point; the Zhenjing gives 3 fen needling retained three breaths, and moxibustion is forbidden as it harms a person's shenming.

《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 · 卷七 · 手部主病針灸要穴歌 · Source: jicheng.tw ↗

經渠主刺瘧寒熱,胸背拘急脹滿堅,喉痹咳逆氣數欠,嘔吐心疼亦可痊

The text records in verse that LU8 was needled for malaria with cold and heat, tension, distension, fullness and hardness of chest and back, throat-bi, cough with counterflow, short rapid breathing with yawning, vomiting and heart pain.

《針灸甲乙經》 Zhēnjiǔ Jiǎyǐ Jīng — Systematic Classic of Acupuncture & Moxibustion, c. 256–282 · 卷08 · Source: Wikisource ↗

胸中膨膨然,甚則交兩手而瞀,暴痺喘逆,刺經渠及天府,此謂之大俞

The text records that for distension in the chest, in severe cases with the hands crossed over it and blurred vision, and for sudden bi with panting and counterflow, LU8 and Tianfu were needled, these being called the 'great transport points'.

On the Lung Channel of Hand Taiyin channel

LU8 is one of 11 points on the Lung Channel of Hand Taiyin Meridian. Nearby points:

Frequently asked questions

Where is LU8 located?

LU8 (Jingqu) is located on the palmar aspect of the forearm, 1 cun proximal to the transverse wrist crease (Taiyuan, LU-9), in the depression on the radial side of the radial artery.

What is LU8 used for?

LU8 descends Lung Qi, clears Lung heat, regulates Qi and blood, harmonizes the five viscera. Common clinical indications include cough, shortness of breath, wheezing, asthma, chest fullness, chest and back tension, chest and back pain, sudden paralysis, heart pain, vomiting, heat in the palms, sore throat, fever and chills, absence of sweating in febrile disease, elbow pain, malaria.

How is LU8 needled?

Perpendicular or oblique insertion 0.1-0.3 cun, avoiding the radial artery. It is crucial to palpate the artery and needle to the side of it. Caution: Adjacent to the radial artery — palpate and avoid the vessel; do not needle into a pulsating artery. Moxibustion is strictly forbidden as it is said to damage the spirit. The Jia Yi Jing also lists it among the points on which moxibustion is prohibited.

Which meridian is LU8 on?

LU8 is a point on the Lung Channel of Hand Taiyin Meridian (Shǒu Tàiyīn Fèijīng).

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⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.