Changqiang

What is GV1?

GV1 (Changqiang) is the first point of the Governing Vessel, on the midline midway between the tip of the tailbone and the anus.

Its name is usually translated as "Long Strong". In classical Chinese medicine it is the starting point of the Du (Governing) channel and its luo-connecting point, which links it to the Conception Vessel. Every modern acupuncture curriculum lists it, so its standing in tradition is high.

Tradition used GV1 mainly for problems of the anus and lower bowel: haemorrhoids (swollen veins around the anus), rectal prolapse, constipation and diarrhoea. Older texts also link it to seizures, agitation and tailbone pain, as channel points on the spine were thought to influence the mind.

Here is the honest verdict. There is essentially no reliable human research on pressing GV1 with a finger for any of these problems. A long history of use is not evidence that a point works, and it is not evidence that it is safe either. Both of those statements apply to this whole page, and we will not repeat them in every section.

GV1 also has a practical problem that most point guides skip. It sits in the cleft between the buttocks, right beside the anus. That makes it an intimate, hard-to-reach and easily irritated site. Skin there is thin, often already sore in the very conditions the point is named for, and close to tissue that bleeds easily.

So this page treats GV1 as a point worth understanding rather than one most readers should press. If you have anal pain, bleeding or a lump, the useful first step is a doctor's examination, not finger pressure. If you still want to use the point, the sections below cover where it is, how light pressure is applied, who should leave it completely alone, and what the research does and does not show.

Where is GV1 and how do you find it?

GV1 sits on the body's midline, in the cleft between the buttocks, halfway between the tip of the coccyx (tailbone) and the anus.

• Find your tailbone first. Sit or stand and run a finger down the centre of your lower back. Past the flat triangle of the sacrum you reach a small, mobile bony tip. That tip is the end of the coccyx.
• Drop into the cleft. Continue straight down the midline from that tip, into the natural groove between the buttocks. GV1 is in that groove, not on the buttock itself.
• Split the distance. The agreed location is the midpoint between the coccyx tip and the anus. In most adults that gap is only about 2 to 3 cm, so GV1 is roughly one finger-width below the bony tip.
• Check the feel. You should feel soft tissue, not bone. If your finger is on something hard, you are still on the coccyx and have not come far enough down.
• Use a position that opens the area. Classical texts locate GV1 with the person kneeling with chest down. Lying on your side with knees drawn up is easier and does the same job.

A note on measurement: traditional sources place GV1 about 0.5 cun from the anus, and half a cun is roughly half a thumb-width, or about 1 cm. Body size changes that, so use the midpoint rule rather than a fixed number.

Be clear about what GV1 is not. The dimple at the top of the buttock crease, the sacral hiatus, and the tailbone tip itself are all different landmarks with different point names. People regularly press one of those and call it GV1. If you cannot reach the true site comfortably, the honest answer is that you cannot reach GV1, not that a nearby spot will do.

How do you apply pressure to GV1?

1. Wash and trim first. Wash your hands with soap and cut your nails short. This area is close to the anus, so hygiene matters more here than at any other point.
2. Get comfortable. Lie on your side with your knees pulled toward your chest. This opens the cleft and lets you reach the midline without straining.
3. Locate with a flat finger pad. Use the pad of your index or middle finger, never a fingertip or nail. Slide down the midline from the tailbone tip to the midpoint described above.
4. Press lightly. Aim for gentle, steady pressure straight inward, about a 2 or 3 out of 10 on a discomfort scale. The tissue here is thin and bruises easily, so this is a light point, not a deep one.
5. Hold and breathe. Hold for 20 to 30 seconds while breathing slowly. You can add small, slow circles instead of a static hold if that is more comfortable.
6. Repeat sparingly. Two or three holds in a session is plenty. Once or twice a day for a week or two is a reasonable trial.
7. Wash again. Clean your hands thoroughly afterwards, every time.

Stop immediately if you feel sharp pain, stinging, burning, or if you see any blood on your finger or on toilet paper afterwards. Stop also if the area feels hot, swollen or tender to light touch, as that can mean infection.

Never press GV1 through a tear, a sore, a lump or inflamed skin. Never use an object, a massage tool, a vibrator or anything pointed on this point. Do not press for longer or harder in the hope of a faster result; this site responds badly to force.

If reaching the point means contorting yourself or causes pain elsewhere, skip it. GV1 is not worth a strained back. Do not ask another person to press it for you unless that person is a qualified clinician working with your clear consent.

What is GV1 traditionally used for?

• Haemorrhoids. This is the headline traditional use. GV1 was pressed or needled for swollen, itchy or painful veins around the anus. Human evidence is limited to small, mostly Chinese-language acupuncture reports with weak controls, and none of it tests finger pressure.
• Constipation and diarrhoea. Tradition treats GV1 as a regulator of the lower bowel in both directions. There are no good controlled trials of pressing it for either. Fibre, fluids, movement and medical review have far better support.
• Rectal prolapse. Classical texts list GV1 for prolapse, often alongside GV20 at the crown of the head. Prolapse is a structural problem that needs medical assessment; there is no evidence finger pressure corrects it.
• Tailbone and low back pain. Local pressure near a sore coccyx can feel soothing, and gentle touch does reduce pain perception for some people in the short term. That is a general effect of touch, not proof specific to GV1.
• Seizures and agitation. Older sources credit GV1, as the first Du channel point, with calming "mania and withdrawal". There is no modern human evidence for this. Epilepsy requires prescribed treatment and nothing on this page substitutes for it.
• Urinary and sexual complaints. Some texts list difficulty passing urine or impotence. Evidence here is absent, and both symptoms have causes worth investigating properly.

Across all of these, the pattern is the same: a long and consistent tradition, and almost no trials of self-applied pressure. The honest summary is that GV1 may be a comforting local point for some people, and that no outcome can be promised.

If a symptom in this list is new, worsening, or involves bleeding, treat that as a reason to see a doctor rather than a reason to press harder. Several conditions that tradition filed under "haemorrhoids" look identical from the outside and are not haemorrhoids at all.

Are there tips for using GV1 effectively?

• Warmth first. A warm bath or a sitz bath softens the tissue and eases local soreness. If you are going to use GV1 at all, just after bathing is the most comfortable moment, and your skin is clean.
• Lighter than you think. Most people over-press acupressure points. Here, light contact is the right dose. If your finger leaves a red mark, you used too much force.
• Keep it short. Thirty seconds is enough. Long, repeated pressure on thin perianal skin risks irritation and achieves nothing extra.
• Fix the cause in parallel. For constipation and haemorrhoids, the things that actually move the needle are fibre, water, not straining, not sitting on the toilet with a phone, and treatment your doctor recommends. Treat GV1 as optional comfort alongside those.
• Give it a fixed trial. Try it for ten to fourteen days and write down your symptoms. If nothing has changed, stop. An open-ended habit with no benefit is just wasted effort.
• Respect privacy and consent. This point is on intimate skin. Do not apply it to another adult, and never to a child, unless you are a qualified clinician with explicit consent and a clinical reason.
• Choose a reachable alternative. If GV1 is awkward or distressing to reach, it is entirely reasonable to work with easier points that tradition also uses for bowel complaints, or simply to skip point work. Ask a registered acupuncturist rather than improvising on a neighbouring spot.
• Keep nails and hands clean. Short nails and washed hands before and after are not optional at this location. A scratch here can become an infection quickly.

One more practical point. Do not use GV1 while sitting on a hard chair or straining on the toilet. Both increase pressure in the area and make irritation more likely. A side-lying position is kinder and easier to control.

What do people get wrong with GV1?

• Expecting a cure. The commonest error. GV1 will not cure haemorrhoids, prolapse, constipation or epilepsy. Expecting that delays real treatment and sets you up for disappointment.
• Pressing the wrong landmark. Many videos point at the tailbone tip or the dimple above the buttock crease. GV1 is below the coccyx tip, in the cleft, halfway to the anus. The nearby spots are different points.
• Using too much force. Deep thumb pressure suits a thick muscle, not thin perianal skin. Force here causes soreness, bruising and sometimes bleeding.
• Pressing on inflamed or broken skin. People reach for GV1 precisely when a haemorrhoid is swollen, a fissure has torn, or the skin is raw. That is exactly when it must be left alone.
• Skipping hand washing. Touching this area with unwashed hands or long nails risks infection. It is a small step that people routinely ignore.
• Using tools. Massage sticks, pens, pressure balls and vibrating devices do not belong anywhere near this point. Finger pad only, or nothing.
• Ignoring bleeding. Treating rectal bleeding as a haemorrhoid you can press away is dangerous. Bleeding needs a diagnosis, because other causes look the same from outside.
• Assuming old equals safe. A point can be centuries old and still be the wrong idea for your particular skin, clot risk or recent surgery.
• Letting someone else do it. Having a partner, a friend or an unqualified therapist press an intimate point is a consent and safety problem, not a shortcut.
• Replacing prescribed treatment. Stopping a laxative, a cream or an anti-seizure medicine because you are using GV1 is the most harmful mistake on this list. Keep taking what you were prescribed.

What does the research on GV1 actually say?

There is no reliable human research on pressing GV1 with a finger, for any condition. That is the plain answer, and we have not found a controlled trial of acupressure at this point to report.

What does exist is a thin and low-quality acupuncture literature, mostly published in Chinese, in which Changqiang appears in point combinations for haemorrhoids, constipation and some paediatric conditions. Those reports typically have few participants, no credible control group, no blinding, and short follow-up. They also test needling by a practitioner, which is a different intervention from a reader pressing a spot with a fingertip. We are not naming individual papers, because we cannot verify them to the standard this library requires.

It is worth knowing what the surrounding evidence looks like. Acupressure research as a whole is dominated by small, unblinded, short-term studies, and self-reported outcomes such as pain or nausea are easily moved by expectation. A few uses do have genuine support: PC6 on the inner forearm for nausea and vomiting has been tested in real controlled trials and that effect is reasonably well established. GV1 is nowhere near that standard.

So the honest grading is "insufficient" on the evidence axis, next to a high traditional standing. Those two things sit side by side and the second does not rescue the first.

What this means for you is practical. Light pressure near your tailbone is unlikely to do much either way, so if it feels soothing and your skin is intact, little is lost. But it should not be your plan for haemorrhoids, a change in bowel habit, prolapse or seizures. For those, the evidence-based options are the ones your doctor can offer, and an examination is the step that actually answers what is going on.