Wushu

What is GB27?

GB27, or Wushu, is a Gall Bladder channel point low on the side of the belly, just in front of the bony point of the hip.

Its Chinese name, Wushu, is usually translated as "Fifth Pivot". It is the twenty-seventh point counted along the Gall Bladder channel, which runs from the outer corner of the eye down the side of the head, trunk and leg to the fourth toe.

In classical theory GB27 is a meeting point of the Gall Bladder channel and the Dai Mai, the "Girdling Vessel" that is described as circling the waist like a belt. Because of that link, older texts group it with points used for complaints of the lower abdomen, the pelvis and the low back. Traditional indications include lower abdominal pain and dragging sensations, irregular or painful periods, vaginal discharge, hernia-type pain in the groin, constipation, and stiffness or pain in the hip and lumbar region.

The honest verdict on the evidence is short: there is essentially no human research testing finger pressure at GB27 for any of these complaints. It is a recognised point with a long paper trail, not a tested treatment. Anything you feel from pressing it may come from the pressure, the warmth, the slow breathing or simply lying still — none of which needs the point to be special.

Two things are worth saying once, clearly. Traditional standing is not evidence that a point works; a point can be listed in every classical text and still have no controlled trial behind it. And traditional standing is not evidence that a point is safe either. GB27 sits over the lower abdomen and the edge of the pelvis, an area that holds the bowel, the bladder, the uterus in women, and large blood vessels. That anatomy, not the tradition, is what decides whether pressing it is sensible for you.

This page describes self-applied finger pressure only. Nothing here involves needles, heat, cupping or anything that breaks the skin.

Where is GB27 and how do you find it?

GB27 sits just in front of, and a little below, the sharp bony bump at the front of your hip, low on the side of the abdomen.

• Find the hip bone point first. Slide your fingers down the side of your waist until you hit a hard, pointed ridge of bone at the front of your hip. Anatomists call it the anterior superior iliac spine, or ASIS. It is the bump a low-slung waistband rests on.
• Step forward off the bone. Move your fingers roughly a thumb-width forward (towards the midline of your body) and very slightly down from that bony point. You should drop off the hard ridge into softer tissue. That soft spot is GB27.
• Cross-check with the navel. Classical texts place GB27 about 3 cun below the level of the navel. Three cun is about four of your own finger-widths held together, or roughly 6–8 cm in most adults. The point should sit at about that height on the side of the belly.
• Feel for the texture. Under your fingertip you want yielding muscle and fat, not bone and not a pulse. If you feel a steady beat, you have strayed too far inward towards a blood vessel. Move back out towards the hip bone.
• Use both sides. GB27 is a paired point, one on the left and one on the right. Most people find the two sides feel slightly different, which is normal.

Lie on your back with your knees bent and feet flat if you can. The abdominal wall softens in that position and the hip bone becomes easier to trace. Standing up and hunting for it through a waistband is the usual reason people cannot find it.

If you are not sure you have the right spot, stay conservative: keep your fingers close to the hip bone rather than wandering towards the centre of the belly.

How do you apply pressure to GB27?

1. Settle first. Lie on your back with knees bent, or sit back in a chair with your belly relaxed. Press on an empty-ish stomach, not straight after a large meal.
2. Use flat fingerpads. Place the pads of two or three fingers over the spot. Avoid digging in with a single nail or a thumb tip; a broader contact spreads the load over soft abdominal tissue.
3. Sink slowly. Press inward and slightly towards the hip bone over three or four seconds. Let the abdominal wall give way rather than forcing through it.
4. Keep it mild. Aim for firm but comfortable — a dull, spread-out feeling of maybe 3 or 4 out of 10. The abdomen is not a place for deep or sharp pressure.
5. Hold and breathe. Maintain steady pressure for 20 to 60 seconds while breathing slowly. You can also make small, slow circles instead of holding still.
6. Release gradually. Ease off over a couple of seconds rather than lifting suddenly.
7. Repeat sensibly. Two or three rounds per side, once or twice a day, is plenty. Treat it as a short routine, not something you do for twenty minutes.

Stop immediately if the pressure causes sharp, stabbing or spreading pain, nausea, dizziness, or pain that lingers after you let go. Stop if you feel a lump, a pulsing mass or an area that is unusually tender compared with the other side.

Do not press through clothing with a hard object, and never use a massage gun, a hard ball or a tool on this area. Fingers only, because fingers give you feedback that a tool does not.

Mild redness that fades within a few minutes is normal. Bruising, soreness the next day, or any change in bowel or bladder habits after pressing means you were too firm — and means it is worth stopping altogether and checking in with a clinician.

What is GB27 traditionally used for?

• Lower abdominal pain and dragging. Classical texts list GB27 for pain, fullness and a heavy, dragging feeling low in the belly. No controlled human trial has tested finger pressure here for abdominal pain, so this rests on tradition alone.
• Menstrual complaints. Because of its link to the Dai Mai or "Girdling Vessel", GB27 appears in older point lists for irregular, painful or scanty periods. Acupressure research on period pain has focused almost entirely on other points, mainly SP6 and LI4, and even there the trials are small and unblinded. Nothing specific supports GB27.
• Vaginal discharge (leucorrhoea). This is one of the oldest listed indications for the point. There is no modern human evidence for it, and persistent or changed discharge needs a medical assessment, not a pressure point.
• Groin and hernia-type pain. Tradition uses GB27 for pain running into the groin. In practice, a genuine hernia is a mechanical problem that pressure will not fix, and pressing on a bulge is unsafe.
• Hip and low back stiffness. The point sits over the edge of the pelvis, where the hip flexors and the broad abdominal muscles attach. Gentle pressure there may feel easing in the same way any slow soft-tissue work does. That is a plausible local-muscle effect, not a channel effect, and it has not been formally studied at this point.
• Constipation and bowel fullness. GB27 appears in some lists for sluggish bowels. General abdominal massage has modest trial support for constipation, but those studies massaged the whole abdomen along the colon, not a single point. Credit belongs to the broad technique, not to GB27.

None of these uses should replace a diagnosis. New, severe, or persistent lower abdominal pain has a long list of causes that matter, and a pressure point is not a way to work out which one you have.

Are there tips for using GB27 effectively?

• Lie down to locate it. The hip bone and the soft hollow in front of it are far easier to feel when your abdominal wall is relaxed and your knees are bent. Hunting for GB27 standing up usually fails.
• Work skin to skin. Pull your waistband down rather than pressing through a belt or stiff denim. You need to feel the texture under your fingers to stay out of trouble.
• Let the breath do half the work. Press as you breathe out and hold lightly as you breathe in. Slow breathing relaxes the abdominal wall and is likely doing more for your comfort than the point itself.
• Compare sides before you press hard. Touch both left and right lightly first. A big difference in tenderness is information worth noticing, and a reason to go gentler on that side, not harder.
• Keep sessions short. Under a minute per side, a couple of rounds, is enough. Longer and harder is not better on the abdomen.
• Add warmth instead of force. A warm (not hot) pack over the lower belly for a few minutes before pressing softens the tissue. Never use burning herbs, heat lamps or anything that could blister the skin.
• Track it honestly. If you are using GB27 for period pain or bowel sluggishness, note your symptoms for a few cycles or weeks. Most symptoms fluctuate on their own, and a simple record stops you crediting a change to the point that would have happened anyway.
• Pair it with the basics. Sleep, hydration, movement and fibre do more for lower abdominal comfort than any single point. Use acupressure as a small comfort measure alongside them.
• Stop if it is not helping. If two weeks of regular use changes nothing, that is an answer. Keep looking rather than pressing harder.

What do people get wrong with GB27?

• Expecting a cure. GB27 will not resolve fibroids, endometriosis, a hernia or chronic constipation. Treating it as a fix delays the assessment that actually sorts the problem out.
• Pressing on the bone. Many people land on the hard point of the hip bone itself instead of the soft hollow just in front of it. You get a sore bone and no point.
• Drifting towards the midline. Wandering inward from GB27 takes you over deeper abdominal contents and, lower down, large blood vessels. If you feel a pulse under your fingers, you are in the wrong place — move back towards the hip bone.
• Going too deep. The abdomen tolerates far less pressure than a shoulder or a calf. Hard, digging pressure here risks bruising and achieves nothing extra.
• Using a tool. Massage guns, hard balls and pointed pressure wands have no place on the lower belly. Fingers tell you when something underneath feels wrong; a tool does not.
• Confusing it with its neighbours. GB26 sits higher, at the level of the navel, and GB28 sits slightly lower and further forward than GB27. People often describe one and press another. If you are unsure, stay with the landmark that everyone agrees on: just in front of the bony hip point.
• Pressing through a bulge or lump. A soft swelling in the groin that comes and goes may be a hernia. Pressure is not treatment and can make things worse.
• Carrying on through pain. Sharp pain, nausea or dizziness means stop, not push harder. "Good pain" is a myth on the abdomen.
• Ignoring pregnancy. Low abdominal points are routinely avoided in pregnancy. Whatever you read online, do not press GB27 if you are or might be pregnant.

What does the research on GB27 actually say?

No useful human research on GB27 was found. There are no controlled trials, and no good observational studies, testing finger pressure at this specific point for abdominal pain, period problems, discharge, constipation or hip pain.

That gap is not unusual. The acupressure literature is heavily concentrated on a handful of points — PC6 for nausea and vomiting, which has genuinely repeated controlled human trials behind it, plus SP6 and LI4 for period pain and labour discomfort, where the trials exist but are mostly small, short and unblinded. Points on the lower abdomen such as GB27 have attracted almost no attention from trialists.

Some adjacent research is worth knowing about, as long as you do not stretch it. Several small trials of whole-abdomen massage for constipation have reported modest improvements in stool frequency and comfort. Those studies worked over the whole belly, following the line of the colon, and were not testing any single acupuncture point. If pressing your lower abdomen helps your bowels, that broad technique is the likelier explanation than GB27 specifically.

You will also find acupuncture studies that include abdominal points within a larger prescription. Those trials involved needling by practitioners, which is a different intervention from self-applied finger pressure, and because the points were used together you cannot pull out what any one of them contributed.

What this means in practice is simple. Treat GB27 as a traditional landmark with an unknown effect. Any benefit you notice may be real for you, but it has not been separated from rest, warmth, slow breathing, touch and the natural ups and downs of most symptoms. That is not a reason to avoid it if it is safe for you — it is a reason not to rely on it, and not to delay getting a proper explanation for lower abdominal symptoms that are new, severe or persistent.