DU-03 (Yao Yang Guan) Lumbar Yang Pass

What does DU-03 Yao Yang Guan do?

DU-03 dispels wind-damp, benefits the lumbar region and legs, and regulates the lower jiao. Its name — Lumbar Yang Pass — marks it as a gateway on the yang midline of the low back.

• Dispels wind-damp — the classical account of aching, heavy, weather-sensitive low back and leg symptoms
• Benefits the lumbar region and legs
• Regulates the lower jiao — the action behind its reproductive indications

The first two are word-for-word what our DU-02 record carries. These are neighbouring points on the same midline with the same regional emphasis, and this library states that overlap rather than differentiating them artificially — the same approach taken across the BL-03 to BL-09 scalp run. What DU-03 adds is regulating the lower jiao, and that addition is what its reproductive indications rest on.

The three “pass” points of the Governing Vessel. Guan means a gate or pass, and it recurs on this vessel at points marking transitions along the spine. DU-03 is the lumbar one. Its immediate neighbour above, DU-04 Ming Men (Gate of Life), carries the vessel’s most weighted name and sits between the kidneys — the two points are four cun apart on the same line and are commonly confused in prescriptions, which is worth knowing before reading any point list.

Source: Sacred Lotus sources & references (vessel, action, location and translation records; the DU-02 and DU-04 records queried and compared against our own data), cross-referenced against multiple online sources.

What is DU-03 Yao Yang Guan used for?

DU-03 is used for lumbosacral pain, for weakness, numbness and impaired movement of the legs, and for irregular menstruation, nocturnal emission and impotence. Our own indication record is reproduced here in full.

• Pain in the lumbosacral region
• Muscular atrophy, motor impairment, numbness and pain of the lower extremities
• Irregular menstruation
• Nocturnal emission
• Impotence

Two groups, and both follow from the position. The lumbar and leg group is local and segmental — L4 is where the nerve supply to the leg passes. The reproductive group belongs to the lower jiao the lumbar spine overlies, and is what the recorded action of regulating that region refers to.

An honest note, and it is the most important passage on this page. Low back pain accompanied by leg weakness, numbness in the saddle region, or any change in bladder or bowel control is a medical emergency requiring immediate assessment — that combination can indicate serious compression of the nerve roots, and it is exactly the symptom cluster this point’s indication list describes. Progressive leg weakness or numbness requires medical assessment in any case. Erectile difficulty warrants medical assessment, since it can be an early sign of cardiovascular or endocrine disease. This record documents classical use; nothing here should delay any of that.

How it is combined. With DU-04 Ming Men above and DU-02 Yao Shu below on the same midline. With BL-23 Shen Shu and BL-25 Da Chang Shu laterally. With BL-40 Wei Zhong behind the knee — the classical distal point for the low back. With GB-30 Huan Tiao for the leg. All held here.

Source: Sacred Lotus sources & references (indication and action records; the DU-02, DU-04, BL-23, BL-25, BL-40 and GB-30 records queried from our own data), cross-referenced against multiple online sources.

Where is DU-03 Yao Yang Guan located?

DU-03 is on the midline of the low back, in the depression below the spinous process of the FOURTH LUMBAR vertebra.

• On the midline, below the L4 spinous process
• DU-04 Ming Men lies above at L2; DU-02 Yao Shu lies below at the sacral hiatus

L4 has the best landmark on the lower back. A line drawn between the highest points of the two iliac crests — the tops of the hip bones, easily felt with the hands on the waist — crosses the spine at approximately the fourth lumbar vertebra. This is the same landmark used in medicine to locate the lumbar interspaces, and it means DU-03 can be found by feel rather than by counting down from the neck. Counting error is the commonest fault on the back, and this point is one of the few places on the spine where the count can be independently checked.

Note the gap in the numbering. DU-03 is at L4 and DU-04 at L2 — there is no Governing Vessel point at L3. The vessel’s points are not one per vertebra, and a reader stepping mechanically down the spine assuming they are will misplace both.

On the name. “Yao Yang Guan” — Lumbar Yang Pass. Yao is the lumbar region, as in DU-02 Yao Shu; yang guan is the yang gate. The Governing Vessel is the sea of the yang channels, and the name marks a passage along it. There is also a GB-33 Xi Yang Guan (Knee Yang Pass) — the same yang guan at the knee, which is why our records carry the qualifier in both names.

Source: Sacred Lotus sources & references (location and translation records, retained unchanged; the DU-02, DU-04 and GB-33 records queried from our own data, and the absence of an L3 point confirmed by query).

• A Manual of Acupuncture (p. 536): On the midline of the lower back, in the depression below the spinous process of the fourth lumbar vertebra.
• Chinese Acupuncture and Moxibustion (p. 227): Below the spinous process of the fourth lumbar vertebra, at the level with the crista iliaca.

How is DU-03 Yao Yang Guan needled?

Our own record states perpendicular insertion of 0.5–1.0 inch, with moxibustion applicable — and the fact that matters most here is that at L4 the SPINAL CORD HAS ALREADY ENDED. What follows is a neutral record of what the reference literature documents. It is not instruction, and this page does not teach technique.

• Angle and depth as recorded: perpendicular, 0.5–1.0 inch.
• Moxibustion: recorded as applicable.
• Regional anatomy: the supraspinous and interspinous ligaments lie in the midline between the L4 and L5 spinous processes, with the thick lumbar erector spinae either side; the vertebral arch lies beneath, and within the canal at this level lie the cauda equina and the dural sac.

The distinction that organises this whole stretch of the Governing Vessel. The spinal cord itself ends at approximately the first or second lumbar vertebra in adults, continuing below that only as the loose bundle of nerve roots called the cauda equina. Checked against the levels our own records give:

• Below the cord terminus: DU-03 at L4 (this point) and DU-04 at L2
• At or above it: DU-05 at L1, DU-06 at T11, DU-07 at T10 and every Governing Vessel point above them

That is a genuine anatomical boundary running through the middle of this run, and it is worth a reader knowing which side of it a given point sits on. It is also age-dependent: the cord ends lower in infants and young children, so the boundary is not in the same place in a child.

Hazard, stated proportionately. With the needle perpendicular in the midline the vertebral arch lies beneath it, and the recorded depth of half to one inch keeps it in ligament and muscle. This is not a high-hazard point. But the midline of the spine is not an inert location, and the recorded depth is what makes that true rather than the location itself.

What is not claimed. No study measuring a safe depth at DU-03 could be located, and none is borrowed. The paediatric CT study this library uses measures the Governing Vessel points DU-09 to DU-14, skin to the epidural layer — and it does not include DU-03. No figure from it is carried across, and no case report naming DU-03 was located.

Source: Sacred Lotus sources & references (needling record, retained unchanged; the recorded vertebral levels of DU-03 to DU-07 queried and compared against our own data; the point list of PMID 26922245 / PMC4769822 confirmed not to include DU-03), cross-referenced against multiple online sources; regional anatomy from standard anatomical description.

Is there research on DU-03, and what should a reader know?

No trial isolates DU-03. Where the point appears it is one component of a low-back protocol, and a study that includes a point in a protocol is not evidence about that point.

Low back pain has one of the largest acupuncture literatures in existence, and a reader will find many trials naming points in this region. Almost all use multi-point protocols built around BL-23, BL-25, BL-40 and local ashi points, with DU-03 as one component. None of that literature is claimed here as evidence about this point.

What this page can state with confidence. DU-03 sits below the L4 spinous process, at the level of the intercristal line — one of the few places on the spine where the vertebral count can be independently checked by feel. There is no Governing Vessel point at L3; DU-04 jumps to L2. And at L4 the spinal cord has already ended, which places DU-03 and DU-04 on one side of a real anatomical boundary and DU-05 upward on the other — a distinction checkable against the vertebral levels in our own records.

A note on searching for it. “GV 3”, “DU 3” and “Yaoyangguan” searches return protocol trials and unrelated material, and there are two specific traps: this point is easily confused with DU-04 Ming Men, its neighbour, and yang guan also names GB-33 at the knee. Our library codes this vessel DU- while much of the literature uses GV-. Any claim attached to this point should be checked against what a study actually used.

Source: Sacred Lotus sources & references (action, indication, location and translation records; the DU-02 to DU-07 vertebral levels, the absence of an L3 point, and the GB-33 record queried and verified against our own data).