BL37 (Yinmen, “Gate of Abundance”) is an acupuncture point on the Bladder Meridian. It is located on the posterior thigh, 6 cun inferior to BL36 (Chengfu), on the line connecting BL36 and BL40 (Weizhong). It relaxes sinews, invigorates channels, alleviates pain, treats sciatica.
On the posterior thigh, 6 cun inferior to BL36 (Chengfu), on the line connecting BL36 and BL40 (Weizhong).
Perpendicular insertion 1.0-2.0 cun. Avoid the sciatic nerve.
Relaxes sinews, invigorates channels, alleviates pain, treats sciatica.
Sciatica, low back pain, pain and numbness in the thigh and popliteal fossa.
Yinmen is a significant point for addressing pain along the posterior aspect of the thigh and lower back, particularly sciatica. It is frequently used for conditions like piriformis syndrome and hamstring strain due to its location and ability to relax sinews and invigorate channels. Clinically, it is often needled deeply to affect the sciatic nerve pathway, providing relief for radiating pain down the leg.
BL37 is one of 67 points on the Bladder Meridian. Nearby points:
BL37 (Yinmen) is located on the posterior thigh, 6 cun inferior to BL36 (Chengfu), on the line connecting BL36 and BL40 (Weizhong).
BL37 relaxes sinews, invigorates channels, alleviates pain, treats sciatica. Common clinical indications include sciatica, low back pain, pain and numbness in the thigh and popliteal fossa.
Perpendicular insertion 1.0-2.0 cun. Avoid the sciatic nerve. Caution: ⚠ Major vessel/nerve nearby — palpate first; avoid deep insertion (near the sciatic nerve).
BL37 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).