Yaoshu

What is GV2?

GV2 (Yaoshu) is a Governing Vessel point in the small hollow at the base of the sacrum, just above the tailbone.

The Governing Vessel runs up the midline of the back, from the tailbone to the head. GV2 is the second point on that line, counting upward from the tip of the coccyx. Its Chinese name, Yaoshu, is usually translated as "lumbar point" or "low back point", which tells you what it was mainly used for.

In classical texts GV2 belongs to the group of low-back and sacral points. Practitioners associated it with lumbar stiffness and pain, with disorders of the lower body such as haemorrhoids and irregular periods, and with weakness or heaviness in the legs. It is taught in most acupuncture curricula, though it is used far less often than its neighbours GV4 and GV3.

Two things are worth saying once, clearly, before the rest of the page. First, a long traditional record is not evidence that a point works. Points were selected by observation and theory centuries before controlled trials existed, and that process does not sort real effects from expectation and the natural settling of symptoms. Second, tradition is not evidence of safety either. A point can be ancient and still be a poor idea to press on a particular back, on a particular day.

The honest verdict on the evidence: there is essentially no human research on GV2 as an isolated point for any condition. Acupressure research as a whole is dominated by small, short, unblinded studies, and GV2 barely appears in it. What you can reasonably expect from gentle self-applied pressure here is local comfort and a sense of release in a tight lower back, which is a modest and real thing, not a treatment for a spinal problem.

Everything described on this page is self-applied finger pressure on unbroken skin. Nothing here involves needles, heat therapy or anything that breaks the skin, and you should not attempt those on yourself.

Where is GV2 and how do you find it?

GV2 sits on the midline of the lower back, in the sacral hiatus: the small notch at the bottom of the sacrum, just above the tailbone.

• Start at the tailbone. Sitting or standing, run a finger down the midline crease of your lower back until you reach the hard tip of the coccyx, right at the top of the buttock cleft.
• Move upward. From that tip, slide your finger up the midline about 2 to 3 cm, roughly one thumb-width and a bit. You are moving from the coccyx onto the sacrum.
• Feel for the notch. GV2 is in a small U-shaped gap in the bone, with a firm bony bump on either side. Under the fingertip it feels like a shallow dip between two ridges.
• Check the midline. The point is exactly on the centre line. If your finger has drifted to either side, you are on the sacrum itself rather than in the hollow.
• Confirm by feel. In most people the spot feels slightly softer and more tender than the bone beside it. Mild tenderness is a normal finding here, not a diagnosis.

Classical descriptions place GV2 at the sacrococcygeal junction, in the hiatus of the sacrum, on the posterior midline. That hollow is covered by a tough membrane, not open bone, so light pressure on it is pressing on tissue over bone.

Body shapes differ. In people with more tissue over the sacrum, the notch can be hard to feel, and the fold of the buttock cleft is the more reliable guide. In very lean people the two bony bumps either side are obvious.

Do not go hunting for this point on someone else's back, and do not press a spot you cannot clearly feel. If you cannot locate a soft dip after a minute of careful searching, stop. Nothing is lost by skipping it, and jabbing at the tailbone area can leave it sore for days.

How do you apply pressure to GV2?

1. Get into position. Stand, or lie on your side with your knees drawn up. Reaching GV2 while sitting on a hard chair is awkward and tends to make you press at a bad angle.
2. Place one or two fingertips. Use the pad of the index or middle finger, flat on the skin, directly on the hollow. Fingertips only; no knuckles, no massage tools, no body weight.
3. Press gently and build slowly. Increase to a firm but comfortable pressure over about five seconds. A useful ceiling is a three or four out of ten on a discomfort scale. The tailbone region bruises easily.
4. Hold and breathe. Keep steady pressure for 30 to 60 seconds while breathing slowly. You can instead use small circles, about one per second, with the same light force.
5. Release slowly. Ease off over a few seconds rather than lifting suddenly. Rest for 30 seconds before repeating.
6. Repeat sparingly. Two or three rounds in a session is plenty. Once or twice a day is a reasonable ceiling for a tight lower back.

Keep the skin unbroken and the area clean and dry. Never press through clothing with a hard object, and never ask a partner to lean on this spot with an elbow.

Stop immediately if you feel sharp pain, a shooting or electric sensation down a leg, numbness, or pins and needles. Stop if the area is already bruised, swollen, hot or tender to light touch. Stop if the skin stays red or marked after you lift your finger.

If pressing GV2 makes your back pain worse rather than easier, do not push through it. Soreness that lasts more than a day after a session means you pressed too hard, and the sensible response is to leave the area alone for a week.

This is finger pressure on intact skin only. Needling, heat treatment and any skin-breaking technique belong with a qualified practitioner and are not self-care.

What is GV2 traditionally used for?

• Lower back pain and stiffness. This is the point's main traditional job, and its name means roughly "low back point". Human evidence for GV2 specifically is absent. Acupressure and acupuncture for chronic low back pain have been studied broadly, with small to moderate short-term benefits reported in trials that are mostly unblinded, which means expectation may explain much of the result.
• Tailbone and sacral discomfort. Practitioners used it for aching at the base of the spine after long sitting. No controlled trial has tested this. What a reader can reasonably expect is local easing from gentle pressure on tight tissue, which is comfort rather than treatment.
• Haemorrhoids and anal discomfort. Classical sources list GV2 among points for this region, on the logic of its position low on the Governing Vessel. There is no usable human evidence, and haemorrhoids have straightforward medical treatments that work.
• Irregular or painful periods. Tradition grouped GV2 with lower abdominal and pelvic complaints. Some acupressure trials on period pain use different points, usually on the lower abdomen and legs, and report modest short-term pain reduction in small unblinded studies. None of that evidence is about GV2.
• Weakness or heaviness in the legs. Older texts mention GV2 for lower limb weakness and paralysis. There is no modern human evidence supporting this, and new or worsening leg weakness is a symptom that needs a doctor rather than a pressure point.
• Diarrhoea and bowel upset. Listed in some classical point groupings. No controlled human research exists for GV2 here.

Across every item on this list, the pattern is the same: a long traditional record and almost no direct testing. Treat GV2 as a comfort measure for a tight lower back, used alongside movement, sleep and whatever your doctor or physiotherapist has advised, not as a replacement for any of it.

Are there tips for using GV2 effectively?

• Warm the area first. A few minutes with a warm pack or a hot shower on the lower back makes the tissue more comfortable to press and the notch easier to feel. Check the skin is not hot or reddened before you apply pressure.
• Lie on your side. Reaching behind you while standing tends to make you arch and tense the very muscles you are trying to settle. Side-lying with knees bent lets your arm relax and gives a cleaner angle.
• Use the softest fingertip force that works. Over bone, more pressure does not mean more benefit. If a light hold feels like it is doing something, stay there.
• Pair it with movement. Gentle pelvic tilts or a short walk after a session usually does more for a stiff lower back than the pressure alone. Movement is the intervention with the strongest evidence for ordinary back stiffness.
• Keep sessions short and regular. One minute, once or twice a day, beats a long session that leaves the tailbone sore. Soreness is a sign to back off, not to push harder.
• Track what actually changes. Note your stiffness out of ten before and an hour after, for a couple of weeks. Back pain fluctuates on its own, so a single good day tells you nothing.
• Mind the skin. This area sits in a crease that stays warm and damp. Make sure it is clean and dry, with no rash, spot or opening, before you touch it.
• Keep your fingernails short. Long nails over a bony notch dig in and can scratch skin you cannot see.
• Do not let it delay a diagnosis. If back pain is new, severe, or came after a fall, get it looked at first. Self-applied pressure is for comfort in a problem you already understand.

What do people get wrong with GV2?

• Expecting a cure. The commonest error is treating GV2 as a fix for a back problem. No acupressure point cures disc trouble, arthritis or nerve compression, and no honest source will promise you an outcome.
• Pressing the wrong spot. Many people land on the tip of the coccyx below the point, or on the solid sacrum above it. GV2 is the dip between those two, roughly 2 to 3 cm above the tailbone tip, on the exact midline.
• Drifting off the midline. Sliding a centimetre or two sideways takes you onto the sacrum or toward other points entirely. If both sides of your fingertip feel bone and the centre feels softer, you are in the right place.
• Using far too much force. People assume a bony area can take hard pressure. The tissue over the sacral hiatus is thin, and heavy pressure leaves bruising and lingering tenderness.
• Using a tool or a knuckle. Massage balls, pressure wands and elbows concentrate force onto bone. Fingertips only here.
• Pressing damaged or infected skin. This crease is a common site for pilonidal cysts, ingrown hairs and pressure sores. People press on through a lump or a sore spot and make it considerably worse.
• Ignoring nerve signals. Shooting pain, tingling or numbness travelling into a buttock or leg means stop, not press harder. Those sensations are information about a nerve, not a sign the point is working.
• Replacing real treatment. Skipping physiotherapy exercises, prescribed medication or a scan because a pressure point feels soothing is the mistake with the highest cost.
• Trying needling or heat at home. Some videos blur acupressure into needling or moxibustion. Anything involving needles, burning herbs or broken skin is not self-care and is not described on this page.

What does the research on GV2 actually say?

There is no useful human research on GV2 as an isolated point. We could not identify controlled trials, or even reasonable-quality observational studies, testing finger pressure on GV2 for back pain, haemorrhoids, period problems or anything else. That is the honest position, and inventing a citation to fill the gap would be worse than the gap.

What exists is wider and less specific. Acupuncture and acupressure for chronic low back pain have been studied in many randomised trials and several systematic reviews. The general finding is a small to moderate short-term reduction in pain compared with usual care, with much smaller and often non-significant differences compared with sham or placebo procedures. Those trials use varying point combinations, usually on the lower back, buttock and leg, and GV2 is rarely among the points reported.

Two limitations matter for a reader. Blinding is genuinely hard in acupressure, because you know whether a finger is pressing your back. Unblinded trials reliably overestimate benefit for subjective outcomes like pain. And follow-up is usually weeks, not months, so nothing in this literature tells you about lasting change.

Where trials did involve the Governing Vessel points in the lower back, they typically used needling by a trained practitioner, not self-applied pressure. Reporting what a trial did is not a recipe; those procedures are not transferable to self-care and should not be attempted at home.

What this means in practice is simple. The absence of evidence for GV2 is not proof that pressing it does nothing. It is a statement that nobody has properly looked. Gentle finger pressure on intact skin over the sacral hollow is low-risk for most people, and if it makes a stiff back feel easier for an hour, that is a reasonable thing to use. It is not a reason to delay seeing someone about back pain that is new, severe, worsening or spreading into the legs.