Liver meridian
LV-1 (Dàdūn, 大敦) — Large Pile
- Meridian
- Liver (LV)
- Anatomical view
- anterior
- Point classification
- Jing-well point of the Liver channel.
- Depth reference
- 0.1–0.2 cun oblique or superficial pricking
- Moxibustion
- A historical text quoted by the checked educational source describes moxibustion at LV-1 as contraindicated during pregnancy and postpartum. This historical caution is not presented as a separately verified modern prohibition; current use requires an independent contemporary safety assessment.
- Reference aliases
- LV1; Dadun; 大敦; Large Pile
Anatomical location
On the lateral side of the great toe, 0.1 F-cun proximal to the outer corner of the toenail.
Traditional actions
Regulates Liver qi; clears damp-heat from the lower burner; restores consciousness; calms agitation.
Recorded indications
Primary: Genital pain or swelling; difficult urination; heavy menstrual bleeding; hernia-type pain.
Secondary: Loss of consciousness; seizure patterns; anxiety or insomnia.
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.
Frequently asked questions
Where is LV-1 located?
On the lateral side of the great toe, 0.1 F-cun proximal to the outer corner of the toenail.
What reference actions and indications are recorded for LV-1?
Regulates Liver qi; clears damp-heat from the lower burner; restores consciousness; calms agitation. The dataset lists these primary indications: Genital pain or swelling; difficult urination; heavy menstrual bleeding; hernia-type pain. Secondary indications are recorded as: Loss of consciousness; seizure patterns; anxiety or insomnia.
Is LV-1 safe during pregnancy?
This dataset does not identify LV-1 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.