The chest's gatekeeper on the Stomach Meridian (ST). Wuyi (ST-15) opens and clears the chest, brings rebellious Qi back downward, and eases the lungs — a quietly powerful point when the chest feels tight, full or congested.
Name & story
The name 屋翳 Wuyi means "Room Screen" or "House Canopy" — imagine a screen or curtain inside a room that shields and separates. The chest cavity is the room, and this point sits like a screen at its front wall. When something blocks or fills that room — a cough, tightness, rebellious Qi rising up — Wuyi helps lift the screen and let things flow freely again. There is something quietly poetic about a point named after the shelter and partition of a house, sitting right there on the chest, guarding the breath.
Point family & character
Wuyi (ST-15) belongs to the Stomach Meridian (ST). It sits on the chest portion of the channel, where the Stomach Meridian travels down the front of the body along the mamillary line.
Five-element dynamics
The Stomach Meridian (ST) belongs to the Earth element, and its Qi is meant to descend — that is its natural direction, just as the Earth receives and moves things downward. When Qi rebels upward in the chest, the lungs are constrained, the breath is laboured, and coughing or fullness follows. Wuyi, sitting right there on the chest wall in the second intercostal space, is the Stomach channel's tool for recalling that rebellious Qi to its proper downward path and unbinding the chest so the lungs can breathe freely again.
Location
Find the sternal angle — the slight ridge where the manubrium meets the body of the sternum — and locate the costal cartilage of the second rib at that level. The second intercostal space is the gap just below it. Wuyi (ST-15) sits in that space, 4 Cun lateral to the midline (Zigong REN-19), on the mamillary line. A useful note: the intercostal space curves upward as it moves outward, so the point will sit a little higher than you might expect — slightly above the level of REN-19 when you look at it from the side.
Anatomy & fascia
The point lies in the second intercostal space, over the pectoralis major muscle and the intercostal muscles beneath it. The lung lies close beneath, which is why needling angle and depth matter here.
Needling
The needle is inserted transverse-oblique, directed either laterally or medially along the intercostal space, or transversely up or down along the channel. It is never inserted perpendicularly or deeply.
The golden tip
If the chest feels tight or a cough is lingering, gentle circular massage with a fingertip in the second intercostal space, along the mamillary line, can help encourage the Qi to descend and ease the breath. Move slowly and breathe deeply as you press. This is a gentle self-care measure only; persistent cough or chest pain always warrants professional assessment.
For education only — not medical advice. Consult a qualified practitioner.