LU8 Channel Gutter

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

LU8 (Jingqu, “Channel Gutter”) is the Jing-River (Metal) point of the Lung Channel of Hand Taiyin Meridian. It is located on the radial aspect of the forearm, 1 cun proximal to the transverse wrist crease, in the depression between the radial artery and the styloid process of the radius. It descends Lung Qi, alleviates cough and asthma.

Location

On the radial aspect of the forearm, 1 cun proximal to the transverse wrist crease, in the depression between the radial artery and the styloid process of the radius.

Needling

Perpendicular insertion 0.1-0.3 cun, avoiding the radial artery.

⚠ Major vessel/nerve nearby — palpate first; avoid deep insertion (near the radial artery).

TCM functions

Descends Lung Qi, alleviates cough and asthma.

Indications

Cough, asthma, chest pain, sore throat.

Jing-River (Metal)Entry/Exit

Clinical notes

LU8 is the Metal point on the Lung Metal meridian, making it a powerful point for regulating Lung Qi, particularly in conditions of excess or stagnation. As a Jing-River point, it is classically indicated for cough, asthma, and wheezing, especially when accompanied by a sense of oppression in the chest. It is also used for wrist pain and carpal tunnel syndrome due to its location. Clinically, it is less commonly used than LU7 or LU9 but can be effective for acute respiratory distress.

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 radial aspect of the forearm, 1 cun proximal to the transverse wrist crease, in the depression between the radial artery and the styloid process of the radius.

What is LU8 used for?

LU8 descends Lung Qi, alleviates cough and asthma. Common clinical indications include cough, asthma, chest pain, sore throat.

How is LU8 needled?

Perpendicular insertion 0.1-0.3 cun, avoiding the radial artery. Caution: ⚠ Major vessel/nerve nearby — palpate first; avoid deep insertion (near the radial artery).

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.