KI22 Corridor Walk

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

KI22 (Bùláng, “Corridor Walk”) is an acupuncture point on the Kidney Channel Meridian. It is located in the second intercostal space, 0.5 cun lateral to the anterior midline. It descends rebellious qi, alleviates cough and asthma.

Location

In the second intercostal space, 0.5 cun lateral to the anterior midline.

Needling

Oblique insertion 0.3-0.5 cun. Caution for pneumothorax.

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

TCM functions

Descends rebellious qi, alleviates cough and asthma.

Indications

Cough, asthma, chest pain, vomiting.

Clinical notes

KI22, 'Corridor Walk', is a crucial point for descending rebellious qi in the chest, making it highly effective for respiratory conditions. It is primarily used for cough, asthma, chest oppression, and shortness of breath, especially when there is a sense of constriction. Its name suggests its role in clearing pathways and promoting smooth qi flow in the chest. It is often used with LU7 to strengthen its action on cough and asthma.

On the Kidney Channel channel

KI22 is one of 27 points on the Kidney Channel Meridian. Nearby points:

Frequently asked questions

Where is KI22 located?

KI22 (Bùláng) is located in the second intercostal space, 0.5 cun lateral to the anterior midline.

What is KI22 used for?

KI22 descends rebellious qi, alleviates cough and asthma. Common clinical indications include cough, asthma, chest pain, vomiting.

How is KI22 needled?

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

Which meridian is KI22 on?

KI22 is a point on the Kidney Channel Meridian (Zú Shàoyīn Shènjīng).

Interactive body mapConditions & evidenceFind an acupuncturistTCM glossary
⚠️ 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.