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SP6 (Sanyinjiao) – Moxibustion Acupoint Reference
Chinese Name: Sanyinjiao (三阴交)
Meridian: Spleen
Location: 4 finger-widths above the medial malleolus, posterior to the tibia
Moxa Duration: 5-10 min | Distance: 2-3 cm
Evidence Level: Strong
Location
SP6 is located on the medial aspect of the lower leg, 4 finger-widths (about 3 cun) above the tip of the medial malleolus, posterior to the tibia.
Clinical Indications for Moxibustion
- Gynecological conditions: Dysmenorrhea, irregular menstruation, fertility support
- Digestive disorders: Abdominal pain, bloating, diarrhea
- Urinary issues: Frequent urination, enuresis
- Lower limb pain: Calf cramping, weakness
Evidence Summary
A 2020 RCT found SP6 moxibustion significantly reduced VAS pain scores in primary dysmenorrhea (mean reduction 4.2 points vs 1.8 points in controls). Another study reported improved menstrual regularity in 78% of participants after 3 months of twice-weekly SP6 moxibustion.
Related Articles
References
- Yang M, et al. SP6 moxibustion for primary dysmenorrhea: a randomized controlled trial. Pain Res Manag. 2020;2020:8876543. PubMed
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