Extra points

EX-HN-11 (Hǎiquán, 海泉) — Sea Spring

View this point in the 3D atlas
Meridian
Extra points (EX)
Anatomical view
head
Point classification
Sublingual point.
Depth reference
Prick with a three-edged needle to bleed.
Moxibustion
Contraindicated.
Reference aliases
EXHN-11; Haiquan; 海泉; Sea Spring

Anatomical location

On the underside of the tongue, at the midpoint of the frenulum of the tongue.

Traditional actions

Clears heat, generates fluids and benefits the tongue.

Recorded indications

Primary: Diabetes (wasting-thirst); swelling of the tongue; vomiting; diarrhea

Secondary: Sore throat; loss of voice; cough

How to read this reference

AcuAtlas separates anatomical location, traditional classification, recorded actions, indications, insertion-depth references, and moxibustion notes because these fields answer different study questions. The location statement is the orientation anchor. The classification and actions describe traditional reference categories, while indications summarize how checked educational sources associate the point with established teaching material. They are not a recommendation to select or stimulate the point.

Depth and moxibustion entries are reproduced as bounded reference notes rather than procedural instructions. Individual anatomy, technique, angle, clinical setting, and local professional standards can change what is appropriate. Review the cited documents and supervised training material before using any technical field. The normalized map coordinate is included only to place the point on the matching AcuAtlas body plate; it is not a substitute for palpation or anatomical assessment.

Sources

References displayed on this page were recorded with the point dataset.

  1. WHO Standard Acupuncture Point Locations in the Western Pacific Region EX-HN11
  2. Deadman P. A Manual of Acupuncture Extra points

Frequently asked questions

Where is EX-HN-11 located?

On the underside of the tongue, at the midpoint of the frenulum of the tongue.

What reference actions and indications are recorded for EX-HN-11?

Clears heat, generates fluids and benefits the tongue. The dataset lists these primary indications: Diabetes (wasting-thirst); swelling of the tongue; vomiting; diarrhea Secondary indications are recorded as: Sore throat; loss of voice; cough

Is EX-HN-11 safe during pregnancy?

This dataset does not identify EX-HN-11 as one of its five mandatory pregnancy-caution points. That is not a declaration of safety. Pregnancy-related point selection requires individualized assessment by a qualified clinician.