BL57 (Chengshan, “Support the Mountain”) is an acupuncture point on the Bladder Meridian. It is located on the posterior aspect of the leg, in the depression formed below the gastrocnemius muscle belly when the leg is extended or the heel is lifted, 8 cun inferior to BL54 (Weizhong). It relaxes sinews, invigorates channels, alleviates pain, treats hemorrhoids.
On the posterior aspect of the leg, in the depression formed below the gastrocnemius muscle belly when the leg is extended or the heel is lifted, 8 cun inferior to BL54 (Weizhong).
Perpendicular insertion 1 to 1.5 cun. Caution for small saphenous vein.
Relaxes sinews, invigorates channels, alleviates pain, treats hemorrhoids.
Spasm of the gastrocnemius, low back pain, sciatica, hemorrhoids, constipation.
Chengshan is a highly significant point, renowned as a command point for hemorrhoids and a powerful point for relaxing the sinews of the calf and lower back. It is indispensable for treating leg cramps, sciatica, lower back pain, and heel pain. Its efficacy for hemorrhoids is well-established, often needled with a perpendicular insertion for this purpose.
BL57 is one of 67 points on the Bladder Meridian. Nearby points:
BL57 (Chengshan) is located on the posterior aspect of the leg, in the depression formed below the gastrocnemius muscle belly when the leg is extended or the heel is lifted, 8 cun inferior to BL54 (Weizhong).
BL57 relaxes sinews, invigorates channels, alleviates pain, treats hemorrhoids. Common clinical indications include spasm of the gastrocnemius, low back pain, sciatica, hemorrhoids, constipation.
Perpendicular insertion 1 to 1.5 cun. Caution for small saphenous vein. Caution: ⚠ Major vessel/nerve nearby — palpate first; avoid deep insertion (near the saphenous vein).
BL57 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).