ST40 (Stomach 40) - Acupuncture Point Information

Chinese Name: Fenglong
English Name: Abundant Bulge

Location: 8 cun superior and anterior to the external malleolus (midway between knee and ankle), about one finger-breadth posterior to Tiaokou (ST38), namely, two finger-breadths from the anterior crest of the tibia.


Luo-Connecting point of the Stomach channel.


Transforms Phlegm and eliminates Dampness, harmonizes the Spleen and Stomach, clears Heat from the Stomach, opens the Heart orifices when confused or obstructed by Phlegm (for psychosis/epilepsy), clears and calms the Shen (in psychosis).

Primary Indications:

Chest pain, vomiting, constipation.

Secondary Indications:

Abundant Phlegm, psychosis.

Tertiary Indications:

Asthma, headache, foot swelling/limb swelling, Wei and Bi syndromes, pain and swelling of lower limbs, vertigo/dizziness, epilepsy, cough, sore throat/loss of voice, urinary retention, facial swelling.

Other Indications:

Kutt (energy problem), Qi counterflow, aesthenia, abdominal pain like being stabbed with a knife, inflammation of liver, greenish colour of foot, amenorrhea, abnormal uterine bleeding.


This information is from the book Acupuncture Point Dynamics and has been used with permission from the author John McDonald.

View other points on the Stomach channel:

(ST1, ST2, ST3, ST4, ST5, ST6, ST7, ST8, ST9, ST10, ST11, ST12, ST13, ST14, ST15, ST16, ST17, ST18, ST19, ST20, ST21, ST22, ST23, ST24, ST25, ST26, ST27, ST28, ST29, ST30, ST31, ST32, ST33, ST34, ST35, ST36, ST37, ST38, ST39, ST40, ST41, ST42, ST43, ST44, ST45)

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