Conception Vessel meridian
CV-23 (Liánquán, 廉泉) — Corner Spring
- Meridian
- Conception Vessel (CV)
- Anatomical view
- head
- Point classification
- Meeting point of the Conception Vessel and Yin Linking Vessel.
- Depth reference
- Specialist-only, anatomy-dependent needling; a fixed cun range is not presented because vessels and glands in the sublingual space vary by individual
- Moxibustion
- Not established: checked point sources report applicable, caution, and prohibition
- Reference aliases
- CV23; Lianquan; 廉泉; Corner Spring
Anatomical location
At the front of the neck, on the anterior midline in the depression above the hyoid bone and above the upper border of the thyroid cartilage.
Traditional actions
Traditionally benefits the tongue and throat, regulates speech, and clears phlegm.
Recorded indications
Primary: Reference uses include tongue stiffness, speech difficulty, sore throat, voice loss, and difficulty swallowing.
Secondary: Secondary uses include excessive salivation, dry mouth, and throat swelling.
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.
- WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008) CV23, p. 231
- Acupuncture.com Acupuncture Point Reference Ren 23: English name, classification, functions, indications and needling sections
- American Dragon Acupuncture Point Reference REN-23: English name, command functions, actions, indications and needling and moxibustion sections
- An Observational Study on the Anatomical Characteristics of Acupoint CV23 with Ultrasonography Results, discussion and conclusion; vessels, sublingual gland and variable shallow depth
Frequently asked questions
Where is CV-23 located?
At the front of the neck, on the anterior midline in the depression above the hyoid bone and above the upper border of the thyroid cartilage.
What reference actions and indications are recorded for CV-23?
Traditionally benefits the tongue and throat, regulates speech, and clears phlegm. The dataset lists these primary indications: Reference uses include tongue stiffness, speech difficulty, sore throat, voice loss, and difficulty swallowing. Secondary indications are recorded as: Secondary uses include excessive salivation, dry mouth, and throat swelling.
Is CV-23 safe during pregnancy?
This dataset does not identify CV-23 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.