CHENGSHAN

NAME

CHENGSHAN

LOCATION

On the posterior midline of the leg, between UB-40 Weizhong and UB-60 Kunlun, in a pointed depression below the gastrocnemius muscle belly when the leg is stretched or the heel in lifted.
With the patient lying prone, the point can be found by stretching the foot as if standing on tiptoe. This will reveal a triangular shaped hollow in the middle of the calf, midway between the transverse crease at the back of the knee and heel. The point is at the top of this triangle.
Located directly below the bellies of the gastrocnemius muscle on the line connecting UB-40 Weizhong and the tendo calcaneus, approximately 8 cun below UB-40 Weizhong.
On the lower leg , in the depression formed below the belly of the gastrocnemius muscle, when the muscle is flexed, approximately 8 cun distal to UB-40 Weizhong, i.e. midway between UB-40 Weizhong and UB-60 Kunlun.
Note: run your finger upwards from the Achilles tendon along the midline until it falls into the depression formed between the two origins of the gastrocnemius muscle bellies, this depression may be easier to palpate if you ask the patient to press the ball of their foot against the resistance of your hand.
When the foot is in full plantar flexion, (as if standing on tiptoe), this point can be found at the apex of the triangular shaped hollow formed in the middle of the calf, midway between UB-40 Weizhong and the level of the lateral malleolus (8 cun below UB-40 Weizhong.

NEEDLING

Puncture perpendicularly 0.8 to 1.2 cun.
Moxibustion is applicable.
Straight insertion, 1.2 to 2.5 cun. Sensation: local distention and soreness, possibly extending to the back of the knee; when inserting the needle deeply for sciatica, there may be an electric, numb sensation extending to the bottom of the foot.
Perpendicular or oblique insertion directed proximally or distally 1 to 1.5 cun.

COMMAND FUNCTIONS

Ma Dan-yang's Heavenly Star point

ACTIONS

Relaxes the muscle channels
Relaxes the sinews
Activates the channel
Alleviates pain
Invigorates the Blood
Clears Heat
Regulates the Qi in the Yang organs
Benefits hemorrhoids
Removes obstructions from the channel
Benefits the calf and heel

INDICATIONS

Low back pain
Spasm of the gastrocnemius
Hemorrhoids
Constipation
Beriberi
Vomiting and diarrhea
Twisted muscles of the calf
Swollen, painful and bleeding hemorrhoids
Cramps
Swelling of the knee
Edema of the lower limbs
Lymphoedema
Heel pain
Lassitude of the limbs
Menstrual pain
Indigestion
Lockjaw
Hernial disorders
Urethritis
Abdominal pain
Difficulty sitting and standing
Inability to stand for long
Sudden turmoil disorder
Heat in the head
Lumbago
Pain in the back and renal regions
Digestive problems
Dyspepsia
Cholera
Cholera with muscle spasms
Anorexia
Anorexia during dysentery
Enterorrhagia
Sore throat
Pain of the lower back and leg
Sciatica
Paralysis of the lower limb
Prolapsed anus
Prolapsed rectum
Sore throat
Leg Qi
Pain of the lumbar spine
Feeling of Heat in the Heart
Trembling
Inability to stay upright
Edema of the upper limbs from cardiac origin
Accumulation of water due to am attack of Cold
Hemafecia
Convulsions
Body tremors
Malarial disorders
Lower body erysipelas due to Damp-Heat
Abdominal prolapse
Shivering
Epistaxis
Muscle spasms
Local paroxysmal spasms
Foot Qi
Pain in the heel and foot
Neuralgia of the thigh
Myalgia
Internal and external trauma
Swelling of the lower limb
Adenitis
Cold attack with hypersecretion

COMBINATIONS

CONTRAINDICATIONS

NOTES

This is a major point for muscle cramps. It is used as a distal point for lower backache and sciatica. It is an empirical point for hemorrhoids. this is the main point for all physical trauma.