LV3: The Point for When You’re Just…Irritated

Taichong. Great Rushing. It’s the Source point of the Liver channel, and in TCM terms, the Liver is the organ most responsible for the smooth flow of Qi throughout the entire body. When that flow gets stuck — from stress, frustration, or suppressed emotion — LV3 is very often where you go to unstick it.

And here’s something worth knowing before we even get to the TCM side: this point has real, measurable effects on the nervous system and cardiovascular system that Western research is only beginning to catch up on.

More on that shortly. First, let’s make sure you can actually find it — because unlike SP6, there’s no cun measurement to lean on here. This one is entirely palpation.

Anatomy: How to Actually Find This Point

LV3 is a pure palpation point — there’s no cun measurement to fall back on, which makes it one of the best points to practice your palpation skills on.

Start on the dorsum of the foot, at the web space between the big toe and second toe. From there, palpate proximally along the space between the 1st and 2nd metatarsal bones — not along the toes themselves, but up the shaft of the foot, where the two metatarsal bones run alongside each other.

Keep moving proximally until you feel the bones diverge and open into an obvious depression. That’s LV3. Don’t keep going past it — if you push too far proximally, you’ll run into the base of the metatarsals and you’re now sitting on bone, not in the point.

The most common location error goes both ways: some students stop too early and land too distally, closer to LV2 (which sits right in the web margin itself); others push too far proximally and end up too close to bone. The fix for both is the same — press firmly enough that you can actually feel the anatomy underneath your finger, not just the skin. You’re feeling for a genuine depression between two bones, and it should be unmistakable once you’re pressing with confidence.

Patient positioning: LV3 is really only practically accessible with the patient supine. Encourage a relaxed, un-tensed foot — a tense foot changes the tissue tension around the metatarsals and makes the depression harder to feel.

Nearby Structures

• Dorsalis pedis artery — runs close by; be depth-aware
• Deep peroneal nerve — in the region
• Extensor tendons of the toes — don’t be on top of the tendons – use them to guide you to the central part of the depression.

The Western Science of LV3

This is where LV3 gets genuinely interesting — because unlike a lot of acupuncture points where the mechanism is still speculative, LV3 has been studied specifically and repeatedly, using real imaging and physiological data, not just outcome surveys.

Blood pressure: the animal research is remarkably consistent. A whole cluster of studies using spontaneously hypertensive rats (a standard model for essential hypertension) has found that acupuncture at LV3 measurably lowers systolic and mean arterial blood pressure, typically stabilizing over about 5-7 days of daily treatment. Researchers have traced this down to some fairly specific mechanisms: changes in sympathetic nervous system activity, improved baroreflex sensitivity (the body’s own blood-pressure-correcting reflex), and altered gene and protein expression in the brainstem regions that directly regulate cardiovascular control. One study even used PET imaging to show that LV3 needling shifts glucose metabolism in the thalamus, hypothalamus, and brainstem — concrete evidence that this isn’t a placebo-level effect, but a real central nervous system response with a plausible physiological pathway behind it.

Alzheimer’s research is newer, but striking. Multiple resting-state fMRI studies have looked specifically at LV3 (often paired with LI4) in Alzheimer’s patients versus healthy controls. Needling at LV3 has been shown to change functional connectivity in brain networks tied to memory and cognition — including the retrosplenial cortex and hippocampus, which are among the earliest regions affected in Alzheimer’s disease, and the brain’s visual and associative processing networks more broadly. A 2024 systematic review pulling together the fMRI literature on LV3 specifically found consistent activation in the cingulate gyrus, precuneus, and posterior hippocampus — areas closely tied to emotional regulation and memory, which lines up remarkably well with LV3’s classical TCM role in calming Liver Yang and regulating the Shen.

What this means clinically: none of this proves LV3 treats Alzheimer’s or replaces blood pressure medication — the human Alzheimer’s studies are small (around 14 patients per group), and the hypertension research is still primarily in animal models. But it does something valuable: it gives you real, citable, peer-reviewed grounding for two of your most common LV3 indications, and a genuinely fascinating talking point for patients or skeptical colleagues who assume acupuncture research stops at pain management.

The TCM Perspective

LV3 is the Source (Yuan) point of the Liver channel — meaning it has direct access to the Liver’s own source Qi, making it the single most powerful point for regulating Liver function as a whole.

The Liver governs the smooth flow of Qi throughout the entire body. When Qi stagnates — most often from stress, frustration, or suppressed emotion — the whole system backs up behind it: mood, digestion, menstruation, even blood pressure. LV3 is where you go to get that flow moving again.

Classical Actions:

• Spreads Liver Qi and relieves stagnation
• Calms Liver Yang and subdues Liver Fire
• Regulates menstruation
• Calms the Shen and relieves emotional constraint
• Benefits the eyes
• Clears channel obstruction in the lower limb

Classical Indications:

• Irregular menstruation, PMS, dysmenorrhea (Liver Qi stagnation type)
• Stress, frustration, irritability, emotional constraint
• Headaches, especially vertex and temporal
• Hypertension
• Blurry vision, red eyes, other eye disorders
• Hypochondriac pain and distension

Worth remembering: hypertension in TCM is typically framed as a sign of Liver Fire or Liver Yang Rising — which is exactly why LV3, as the point that calms and subdues the Liver, is so often part of the picture when blood pressure is involved.

Clinical Pearls from 25 Years in Practice

1. Needle Toward Kidney 1

When needling LV3, think about directing your needle toward KD1 (on the sole of the foot). This gives you a nice, natural perpendicular angle and keeps your technique consistent — a small mental cue that makes a real difference once you’re doing it regularly.

2. Don’t Limit This to Gynaecology

Because the Liver governs menstruation, LV3 gets used constantly in gynaecological treatment — and it belongs there. But don’t let that be the only place you reach for it. This is one of the single best points for stress, and it deserves a place in your protocol for stress-related presentations just as often as menstrual ones.

3. Palpation Is the Whole Skill Here

Since there’s no cun measurement to rely on, LV3 is a genuinely good point to use when training your palpation skills generally. If a student can find LV3 confidently and consistently, that’s a good sign their palpation technique is developing well.