BL39 (Weiyang, “Outside of the Crook”) is the Lower He-Sea point of the Bladder Meridian. It is located on the posterior aspect of the knee, lateral to BL40 (Weizhong), on the medial border of the biceps femoris tendon. It relaxes sinews, invigorates channels, alleviates pain, benefits the bladder.
On the posterior aspect of the knee, lateral to BL40 (Weizhong), on the medial border of the biceps femoris tendon.
Perpendicular insertion 1.0-2.0 cun.
Relaxes sinews, invigorates channels, alleviates pain, benefits the bladder.
Low back pain, stiffness of the hip, spasm of the gastrocnemius, retention of urine.
As the Lower He-Sea point of the Sanjiao (Triple Burner), Weiyang is important for regulating the water passages and treating disorders of the lower burner, especially urinary retention or difficulty. It also excels at relaxing sinews and invigorating channels in the popliteal region, making it useful for knee pain, sciatica, and stiffness in the lower back and leg. Its Lower He-Sea category links it to the Sanjiao's role in fluid metabolism.
BL39 is one of 67 points on the Bladder Meridian. Nearby points:
BL39 (Weiyang) is located on the posterior aspect of the knee, lateral to BL40 (Weizhong), on the medial border of the biceps femoris tendon.
BL39 relaxes sinews, invigorates channels, alleviates pain, benefits the bladder. Common clinical indications include low back pain, stiffness of the hip, spasm of the gastrocnemius, retention of urine.
Perpendicular insertion 1.0-2.0 cun.
BL39 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).