San Jiao 16 (SJ 16) Tian You — Heavenly Window

This point, on the neck, is a Window of Heaven point that benefits the head, neck, eyes and ears and descends rebellious qi.

San Jiao 16 (SJ 16) Tian You 天牖 — Heavenly Window

Location

On the lateral neck, posterior and inferior to the mastoid process, on the posterior border of the sternocleidomastoid muscle, level with the angle of the mandible.

Anatomy

Posterior border of sternocleidomastoid; the posterior auricular artery and the occipital artery; the lesser occipital nerve.

Actions & Functions

  • Benefits the head, eyes, ears and nose
  • Descends rebellious qi
  • Dissipates nodules

Indications

Headache, dizziness, sudden deafness, blurred vision, facial swelling, stiff neck, and scrofula.

Needling

0.5-1.0 cun, perpendicular insertion.

Moxibustion Suitability

Suitable for moxibustion.

Point Combinations

With GB-20 for headache and neck stiffness.

Classical Text References

A Window of Heaven point of the Triple Burner.

Cautions & Contraindications

None specific.

Latest Research

Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

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PubMed research

Network Meta-Analysis Finds Chinese Herbal Decoctions Improve Outcomes and Reduce Side Effects in Breast Cancer Treatment

Research summary (Traditional Chinese Medicine): Efficacy and safety of traditional Chinese medicine decoctions in breast cancer treatment: a network meta-analysis. - Frontiers in oncology, 2026.