BL7 Celestial Connection

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

BL7 (Tongtian, “Celestial Connection”) is an acupuncture point on the Bladder Meridian. It is located on the head, 4 cun posterior to the anterior hairline, 1.5 cun lateral to the midline (DU20). It dispels wind, clears the head, and opens the nasal passages.

Location

On the head, 4 cun posterior to the anterior hairline, 1.5 cun lateral to the midline (DU20).

Needling

Transverse insertion 0.5-1 cun. Caution: avoid major blood vessels.

TCM functions

Dispels wind, clears the head, and opens the nasal passages.

Indications

Headache, vertigo, nasal obstruction, epistaxis.

Clinical notes

Tongtian is primarily used for its strong action in clearing the head and opening the nasal passages, making it a key point for various head disorders. It is particularly effective for frontal headaches, nasal congestion, rhinitis, and epistaxis. Its name, 'Celestial Connection,' reflects its ability to connect with and clear the sensory orifices of the head. Clinically, it is often paired with Yintang for severe sinus issues.

On the Bladder channel

BL7 is one of 67 points on the Bladder Meridian. Nearby points:

Frequently asked questions

Where is BL7 located?

BL7 (Tongtian) is located on the head, 4 cun posterior to the anterior hairline, 1.5 cun lateral to the midline (DU20).

What is BL7 used for?

BL7 dispels wind, clears the head, and opens the nasal passages. Common clinical indications include headache, vertigo, nasal obstruction, epistaxis.

How is BL7 needled?

Transverse insertion 0.5-1 cun. Caution: avoid major blood vessels.

Which meridian is BL7 on?

BL7 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).

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.