Naohu

What is GV17?

GV17 (Naohu) is a Governing Vessel point on the midline at the back of the head, in the small hollow just above the bony occipital bump.

The name Naohu is usually translated as "Brain's Door" or "Brain's Window". In classical texts it sits on the Governing Vessel, the channel that runs up the spine and over the midline of the head, and it is listed as a crossing point with the Bladder channel. Older sources group it with the other occipital points used for headache, stiff neck and a feeling of heaviness in the head.

It is a genuinely old, well-documented point, but it is not one of the workhorses. Most practitioners reach for GV16, GV20 or GB20 far more often, and GV17 tends to appear as a supporting point rather than a main one.

Here is the honest verdict on the evidence: there is essentially no human research on GV17 specifically. Nothing has been tested on this point for headache, dizziness, vision or anything else in a way that would let anyone claim an effect. What exists is tradition plus a general, low-quality evidence base for acupressure as a whole, which is mostly small, short-term and unblinded.

Two things are worth stating plainly once, here, so you can read the rest of the page with them in mind. Traditional standing is not evidence that a point works. It is also not evidence that a point is safe, because the old texts were written for a different world and without modern safety testing. In fact several classical sources carry an explicit warning about working deeply at this spot, which is a reasonable hint to be gentle.

Everything described on this page is self-applied finger pressure on intact skin. Treat GV17 as a comfort technique you can try, not as a treatment. If you have head pain that is new, severe or changing, that is a question for a doctor, not for a pressure point.

Where is GV17 and how do you find it?

Find the hard bump at the centre-back of your skull; GV17 sits in the shallow dip directly above it, on the midline.

• Start at the midline. Run a fingertip up the centre of the back of your neck until the soft neck muscles give way to solid skull bone.
• Find the bony bump. Keep going up the midline and you will meet a rounded ridge or knob. This is the external occipital protuberance, sometimes called the inion. Most people can feel it easily; on some it is subtle.
• Step just above it. GV17 is in the small hollow on the upper border of that bump, still exactly on the midline. It is roughly a fingertip's width above the highest part of the knob.
• Cross-check with the hairline. In traditional measurements GV17 is about 2.5 cun above the natural back hairline, which works out around 3 to 4 cm (just over an inch) for most adults. GV16 sits lower, about 1 cun above the hairline, in the big soft hollow under the skull.
• Confirm by feel. You are looking for a slight give or dip under steady fingertip pressure, with firm bone on either side. GV17 lies over bone, not over a soft gap.

The easiest way to get it wrong is to stop too low and land in the large soft hollow beneath the skull. That hollow is GV16 territory, not GV17. If your finger sinks into a noticeable gap with no bone under it, you have gone too far down.

Use a mirror or ask someone to point out the bump if you cannot feel it. Head shapes vary and in some people the protuberance is almost flat.

Both sides of the point are symmetrical because it sits exactly on the centre line, so there is only one GV17, not a pair.

How do you apply pressure to GV17?

1. Get comfortable first. Sit upright with your back supported, or lie on your side. Do not do this standing if you ever feel lightheaded.
2. Use one fingertip. The pad of your middle or index finger is ideal. Rest your elbow on a table or armrest so your arm is not working hard.
3. Press straight in, gently. Apply slow, steady pressure toward the centre of the skull. Aim for mild firmness you would rate about 3 or 4 out of 10, never sharp pain.
4. Hold or circle. Hold steady for 20 to 60 seconds, or make small circles for the same time. Keep breathing normally throughout.
5. Keep your neck neutral. Do not let the pressure push your head forward into a chin-tuck. Support your forehead with your other hand if needed.
6. Repeat sparingly. Two or three rounds in a session, and up to two sessions a day, is plenty. More is not better here.
7. Finish and rest. Release slowly, then sit still for a minute before standing up.

Use fingers only. No tools, no knuckles driven in hard, no leaning your head back against a chair edge or a doorframe to get more force. The point sits over the skull and over nerves that run up the back of the head, and heavy pressure there can leave you with a sore scalp or a worse headache than you started with.

Stop immediately if you feel sharp or shooting pain, numbness, tingling that spreads, dizziness, nausea, visual changes, or a headache that intensifies while you press. These are reasons to stop and reassess, not to push through.

If the area feels tender for more than a day after a session, leave it alone and lower the pressure next time. Soreness means you used too much force, not that it worked.

What is GV17 traditionally used for?

• Headache at the back of the head. Classical sources list GV17 for occipital headache and a sensation of heaviness in the head. No trial has tested finger pressure on GV17 for headache, so this remains a traditional claim only. Broader acupressure studies for tension headache exist but are small and unblinded.
• Stiff neck and a heavy head. Tradition pairs this point with neck rigidity and difficulty turning the head. It is plausible that gentle pressure over tight occipital muscles feels good, but that is muscle comfort, not a tested effect of the point itself.
• Dizziness. Old texts associate Naohu with vertigo and unsteadiness. There is no human evidence for this use, and dizziness has many causes that need proper assessment, some of them serious.
• Eye and vision complaints. Because the point sits over the back of the skull, near where visual pathways end, tradition linked it to blurred vision and sore eyes. This is a theory based on location and naming, not a finding. Nothing supports it in people.
• Voice loss. Several classical lists include aphonia, meaning loss of voice. This is a historical indication with no modern support whatsoever.
• Seizure and agitation disorders. Some older sources list GV17 for epilepsy and mania. Do not use acupressure as a response to seizures. These are medical conditions that need medical care, and nothing on this point changes that.

Taken together, the honest summary is that GV17 carries a long traditional list and almost no modern testing. The most realistic thing it offers a layperson is a brief, pleasant easing of tension in a tight area at the base of the skull.

Most people find the surrounding neck muscles respond more noticeably than the bony midline point does. That is worth knowing before you expect much from GV17 alone.

Are there tips for using GV17 effectively?

• Warm the area first. A warm shower or a warm cloth on the back of the head and neck for a few minutes makes the tissue more comfortable to work on and means you need less force.
• Support your head. Rest your forehead in your free hand, or lean your forearms on a desk. If your neck is holding your head up against the pressure, the muscles tighten and the session is less pleasant.
• Work the whole area, not just the dot. Spend a minute on the soft band of muscle along the base of the skull on both sides before settling on the GV17 midline hollow. Most of the comfort comes from there.
• Keep sessions short. One or two minutes on GV17 is enough. Long, grinding pressure on the back of the head tends to produce a dull ache afterwards.
• Pair it with breathing. Slow exhales during the hold give you a simple relaxation effect you can actually feel, which is a fair part of why acupressure sessions feel calming.
• Check your screen setup instead. If your back-of-head tension shows up on workdays, a monitor that is too low or a phone held in your lap will undo anything a point does. Fix the posture first.
• Track what happens. Note the time, how you felt before and after, and anything else you did. Over a couple of weeks this tells you honestly whether it helps you, which no general article can.
• Keep nails short. A fingernail on the scalp breaks skin easily, especially if you press through hair.

Expect something modest, like a brief loosening or a few minutes of calm. If you get that, it is doing what acupressure realistically does. If you get nothing after two weeks of fair trials, it is reasonable to stop and try something else.

What do people get wrong with GV17?

• Expecting a cure. No acupressure point cures headaches, vision problems, dizziness or seizure disorders. Treating GV17 as a fix rather than a comfort measure is the biggest error, and it can delay real diagnosis.
• Landing on GV16 instead. Many people stop at the big soft hollow under the skull. GV17 sits higher, on bone, just above the occipital bump. If your finger sinks into a gap, you are too low.
• Drifting off the midline. GV17 is exactly on the centre line. Sliding an inch to either side puts you over the Bladder channel points and the occipital muscles, which is a different area entirely.
• Pressing far too hard. People assume the skull can take anything. Nerves that supply the back of the scalp run through this region, and hard pressure can produce a lingering scalp ache or a worse headache.
• Using tools or doorframes. Massage canes, knuckles, tennis balls and leaning the skull against a hard edge all deliver force you cannot control. Fingertips only.
• Working through hair with nails. Scratching the scalp while pressing through hair breaks skin and invites infection. Use the flat pad of the finger.
• Ignoring new or severe symptoms. Pressing a point while a headache gets steadily worse, or while vision changes, wastes time that matters.
• Trying to do needling at home. Research on this point used needles inserted by trained practitioners. That is not something to copy. Nothing on this page involves breaking the skin.
• Overdoing the frequency. Several long sessions a day tends to leave the area tender rather than relaxed.

What does the research on GV17 actually say?

There is essentially nothing. We could not find any human study, controlled trial or well-documented case series testing GV17 on its own, by needling or by acupressure, for any condition. That is the honest state of play.

GV17 sometimes appears inside larger scalp or head acupuncture protocols, where several points are used together in a single session. Those studies cannot tell you what GV17 contributed, because the effect of one point in a multi-point protocol cannot be separated out. They also tend to be small and unblinded, which further limits what they show.

The wider acupressure literature is more active but still weak. Trials on tension headache, neck pain and general relaxation exist, usually with few participants, no credible sham comparison and short follow-up. Results are mixed and the better-controlled studies tend to show smaller effects. None of that evidence is about GV17 specifically, so it cannot be borrowed to support this point.

The clearest contrast in the field is PC6 on the inner wrist, which has been tested repeatedly in real controlled trials for nausea and vomiting, including pregnancy sickness and post-operative nausea. That body of work genuinely supports a modest effect. GV17 has no comparable evidence base, and saying otherwise would be dishonest.

One historical note worth reporting: several classical texts carried explicit warnings about deep needling at the Brain's Door, which is unusual for a point description. This is a reason for practitioners to be careful rather than evidence about effectiveness, and it reinforces the case for light finger pressure only at home.

What all this means for you is simple. If gentle pressure here feels good, there is little harm in a short daily session on intact skin. But do not treat an absence of research as a hidden benefit, and do not let a point substitute for getting a persistent or worsening headache properly assessed.