REN20 Magnificent Canopy

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

REN20 (Huagai, “Magnificent Canopy”) is an acupuncture point on the Conception Vessel Meridian. REN20 is located on the anterior midline of the chest, at the level of the first intercostal space. It descends lung qi and alleviates cough and asthma.

Location

REN20 is located on the anterior midline of the chest, at the level of the first intercostal space.

Needling

Oblique insertion inferiorly 0.3-0.5 cun. Caution for pneumothorax.

⚠ Pneumothorax risk: oblique/shallow only, never deep perpendicular over the chest wall.

TCM functions

Descends lung qi and alleviates cough and asthma.

Indications

Cough, asthma, chest pain, sore throat.

Clinical notes

REN20 is a key point for descending Lung Qi and alleviating cough and asthma, particularly when there is a sensation of oppression in the chest and difficulty breathing. It is effective for various types of cough, including those due to external pathogens or internal imbalances. Its location makes it particularly useful for clearing phlegm from the chest and relieving wheezing. It is often used in conjunction with LU1 or LU7 for acute respiratory conditions.

On the Conception Vessel channel

REN20 is one of 24 points on the Conception Vessel Meridian. Nearby points:

Frequently asked questions

Where is REN20 located?

REN20 is located on the anterior midline of the chest, at the level of the first intercostal space.

What is REN20 used for?

REN20 descends lung qi and alleviates cough and asthma. Common clinical indications include cough, asthma, chest pain, sore throat.

How is REN20 needled?

Oblique insertion inferiorly 0.3-0.5 cun. Caution for pneumothorax. Caution: ⚠ Pneumothorax risk: oblique/shallow only, never deep perpendicular over the chest wall.

Which meridian is REN20 on?

REN20 is a point on the Conception Vessel Meridian (Rèn Mài).

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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.