Hanyan

What is GB4?

GB4, or Hanyan, is a Gall Bladder channel point in the hair of the temple, above and slightly in front of the ear.

It is one of four points spaced along the curve of the temporal hairline, between ST8 at the forehead corner and GB7 near the ear. In classical texts GB4 is grouped with its neighbours GB5 and GB6 and linked to one-sided head pain, ear noise, dizziness and twitching around the jaw. The name Hanyan is often rendered as "jaw dislike", a nod to its old association with chewing and facial movement.

Two things are worth stating plainly before you read any further. Long traditional use is not evidence that a point works, and it is not evidence that pressing it is safe for you. Both questions have to be answered separately, and this page tries to do that.

On the evidence side, the honest verdict is thin. No published human trial has tested finger pressure on GB4 on its own for any condition. Needle acupuncture for migraine prevention has reasonable trial support overall, but those studies use multi-point protocols and needles, so they cannot tell you what your own thumb on your temple will do.

That does not make the point useless. Gentle self-massage of the temple area is pleasant, low-cost and low-risk for most healthy adults, and many people find it eases a tight, aching temple. Describing that as comfort rather than treatment is the accurate framing.

The temple also holds something you should know about: the superficial temporal artery runs through this region and you can often feel it pulse. That matters for how hard you press and for one specific red flag covered under "Who should avoid it" and "When to see a doctor".

Treat GB4 as a traditional comfort point with no point-specific human evidence, and keep any new or changing headache pattern in front of a doctor rather than under your fingers.

Where is GB4 and how do you find it?

GB4 sits in the hair of the temple, on the curve between the corner of your forehead hairline and the hairline in front of your ear, closer to the forehead end.

• Find the front marker. Put a finger on the corner of your forehead hairline, where the straight front hairline turns and starts heading down towards the ear. This is the ST8 area and it is your upper anchor.
• Find the back marker. Now find the hairline just in front of your ear, level with the very top of the ear. That is the GB7 area and it is your lower anchor.
• Trace the curve. Run a fingertip through the hair along the gentle arc that joins those two markers. GB4 is agreed to lie on this arc.
• Take the upper quarter. GB4 is about one quarter of the way along, measured from the forehead corner. On most adult heads that is roughly 2–3 cm (about two thumb-widths) down from the forehead corner.
• Check with your jaw. Rest your fingers there and clench your teeth a few times. The temporalis muscle will bulge under your fingertips, which confirms you are on the temple and not up on the side of the skull.

Classical texts place GB4 at the junction of the upper quarter and lower three quarters of that ST8-to-GB7 curve. GB5 sits at the midpoint of the same line and GB6 at the lower quarter, so the three are close together and easy to mix up.

Under your finger you should feel hair, thin skin, a layer of muscle and then hard skull. You may also feel a thin cord that pulses with your heartbeat. That is the superficial temporal artery, and it is normal. Shift slightly off it rather than pressing it down.

If you are not sure you have the exact spot, work the whole arc gently with small circles. For self-massage, being a centimetre out matters far less than pressing comfortably and stopping when something hurts.

How do you apply pressure to GB4?

1. Get comfortable. Sit down, somewhere quiet, with your elbows supported on a table or on the arms of a chair. Working on the head is easier when your arms are not holding themselves up.
2. Part the hair. Use your fingers to move hair aside so your fingertip meets scalp. Pressing through a thick handful of hair pulls at the roots and makes everything sore.
3. Place the finger pad. Use the flat pad of your index or middle finger, never a nail or a knuckle. You can treat both temples at once, one hand each side.
4. Press lightly. The scalp here is thin and sits on bone. Build to a firm but comfortable pressure, around a three or four out of ten. A dull, warm ache is fine; sharp or shooting pain is not.
5. Move in small circles. Rather than pushing straight down, make slow circles about the size of a pea, so the skin moves over the muscle beneath.
6. Keep it short. Thirty to sixty seconds per side is plenty. Pause, breathe, and repeat up to three times if it still feels good.
7. Repeat a few times a day. Two or three short sessions a day is a reasonable ceiling for a self-care routine.
8. Stop at the warning signs. Stop at once for dizziness, light-headedness, visual changes, nausea, or if the temple becomes more painful rather than less.

One specific caution for this area. If you feel a cord pulsing under your fingertip, that is the temporal artery. Ease off and move a few millimetres away instead of squashing it. Do not press firmly on both temples at the same time while standing up.

This is self-applied finger pressure only. Nothing on this page involves needles, heat, suction or anything that breaks the skin, and you should not attempt any of those on yourself.

If you bruise easily, take a blood thinner, or have tender scalp skin, keep the pressure very light and the sessions short.

What is GB4 traditionally used for?

• One-sided head pain. This is the main traditional use: migraine and temple headache on the same side as the point. Human evidence for GB4 specifically does not exist. Broader trials of needle acupuncture for migraine prevention are more encouraging, but they use many points at once and tell us nothing about finger pressure on this one.
• Tension across the temples. Tradition links GB4 to a tight, gripping band of head pain. Small, unblinded studies of general head and neck acupressure report short-term easing of tension-type headache, but they are low quality and none isolated GB4.
• Tinnitus and ear discomfort. Classical texts list ringing in the ears and ear pain among the point's indications because the channel passes around the ear. Trials of acupuncture for tinnitus are small and conflicting, and no study has tested pressing GB4 for it.
• Dizziness. Vertigo appears in older indication lists for this point. There is no human research supporting self-pressure here for dizziness, and new or severe dizziness needs a medical cause ruled out first.
• Jaw and upper tooth pain. The name Hanyan ties the point to the chewing region, and the temporalis muscle you can feel under your finger is a chewing muscle. Massage of that muscle is a mainstream comfort measure for jaw clenching, but that is muscle massage, not a point-specific effect, and toothache needs a dentist.
• Eye strain and outer eye pain. Tradition connects GB4 to pain at the outer corner of the eye. Evidence is absent. Any relief people report from rubbing the temple during screen fatigue is just as likely to come from the pause and the gentle touch.
• Facial twitching. Old sources mention spasm around the face and jaw. This has not been tested and persistent twitching should be looked at by a doctor.

The pattern here is consistent. Tradition gives GB4 a broad list of head and face complaints; published human research has not examined the point on its own for any of them.

What might regular use of GB4 help prevent?

• Fewer migraine days, in theory only. Traditional practice uses local temple points as part of a prevention routine between attacks, not just during one. Needle acupuncture does have Cochrane-level support for reducing migraine frequency, but that work tested needling by practitioners using full point prescriptions. It cannot be read as proof that pressing GB4 yourself prevents migraine.
• Build-up of jaw clenching tension. The temporalis chewing muscle lies directly under GB4. Massaging a clenching muscle regularly is a standard self-care habit for people who grind their teeth, and keeping it from tightening may reduce temple ache. The evidence is for muscle massage in general, not for this point.
• Screen and posture headaches. A short temple massage every few hours mostly works because it forces a break from a screen. The break, the blinking and the change of position are the plausible active parts, not the point.
• What it will not prevent. Pressing GB4 does not prevent strokes, aneurysms, high blood pressure, eye disease or any structural cause of headache. Nobody should delay a medical assessment because a self-massage routine is in place.

Treat prevention claims for GB4 as tradition plus plausibility, not as a tested result. If you want to try a routine, give it a fixed trial period, such as four to six weeks, and keep a simple diary of headache days.

A diary is useful because headaches naturally rise and fall. Without a record, a quiet fortnight is easily mistaken for proof that the routine worked. If your diary shows no change, stop and spend the effort on sleep, hydration, trigger patterns or a prescribed preventive medicine instead.

Are there tips for using GB4 effectively?

• Let your jaw find the spot. Clench and release your teeth while your fingertip rests on the temple. The muscle that bulges is the temporalis, and GB4 lies over its upper front edge. This is a far more reliable guide than measuring in the mirror.
• Work both sides. Even when the headache is one-sided, treating both temples takes the same time and keeps the pressure even. It is also easier to notice how the sore side differs.
• Keep the nails out of it. Short nails and flat finger pads. The scalp here breaks easily and a nail mark in the hairline is slow to heal and easy to miss.
• Go lighter than you think. There is almost no padding between skin and skull at the temple. Pressure that feels mild on a shoulder feels like bruising here.
• Move the skin, not just downwards. Small circles that glide the scalp over the bone are more comfortable and less likely to irritate the artery than pushing straight in.
• Pair it with a real break. Use the minute as a cue to look away from the screen, drink some water and unclench your jaw. Those steps have more going for them than the point itself.
• Try it early. People who find temple massage useful for migraine usually say it helps most in the first stages, before the pain is established. Once an attack is severe, touch to the head often feels worse.
• Give it a fair test and then decide. Two weeks of consistent use tells you more than occasional attempts during a crisis. If there is no benefit, let it go without guilt.
• Do not stop your prescribed treatment. Self-massage sits alongside migraine medication, blood pressure tablets or dental treatment. It does not replace any of them.

What do people get wrong with GB4?

• Expecting a cure. The most common mistake is believing a point can clear migraine, tinnitus or jaw pain for good. Nothing in the research supports that. Self-pressure here is a comfort measure, and hoping for more usually ends in disappointment and delayed care.
• Pressing far too hard. The temple is thin skin over muscle over bone. Digging in bruises the skin and can leave the area more tender than before. Firm and comfortable beats hard every time.
• Squashing the pulsing artery. If you feel a cord throbbing under your fingertip, you are on the superficial temporal artery. Move off it. Compressing a vessel is not part of the technique and can bring on a dull ache or light-headedness.
• Grabbing the wrong landmark. Many videos show the hollow of the temple beside the eyebrow, which is the Taiyang extra point, not GB4. GB4 is higher and further back, inside the hairline on the curve between the forehead corner and the front of the ear.
• Confusing it with its neighbours. GB5 and GB6 sit on the same short arc. GB4 is the one nearest the forehead end. For self-massage this matters less than you might think, but it is worth knowing you are in a crowded neighbourhood.
• Dragging on the hair. Pressing through a thick handful of hair pulls the roots and creates a second, pointless pain. Part the hair first.
• Using it on a brand new headache pattern. A headache that is suddenly different, the worst ever, or comes with fever, weakness or vision loss is not a self-massage problem. People lose time rubbing their temple when they should be phoning for help.
• Treating a tender temple artery. A new, sore, ropey artery at the temple in an adult over 50 is a medical red flag, not a tight spot to work on.

What does the research on GB4 actually say?

There is no useful human research on GB4 itself. No controlled trial has tested finger pressure on this single point for headache, tinnitus, dizziness or jaw pain, and the point does not appear as the subject of its own study in the published literature.

What does exist sits one or two steps away. Cochrane reviews of needle acupuncture for migraine prevention have found that acupuncture reduces headache frequency compared with no acupuncture or usual care, with a smaller and less certain advantage over sham acupuncture. Those trials used trained practitioners, needles and whole point prescriptions. GB4 may have been among the points used in some protocols, but you cannot pull a single point out of a package and assume it carried the effect.

For acupressure specifically, the published work on headache is small, mostly unblinded, short-term and conducted on mixed point combinations. Participants usually know they are being touched, which makes expectation a large part of any reported benefit. Nothing in that body of work isolates GB4.

There is a separate, more mainstream literature on massage of the chewing muscles for jaw clenching and temporomandibular pain. The temporalis muscle lies directly under GB4, so gentle temple massage overlaps with that approach. The honest reading is that any relief is best explained as muscle massage, not as a point-specific effect.

For contrast, the one acupressure claim with genuinely solid human support is PC6 at the wrist for nausea and vomiting, where multiple controlled trials point the same way. GB4 is nowhere near that standard, and a reference page that implied otherwise would be misleading you.

What this means in practice is simple. If gentle temple pressure feels good, there is little harm in using it for a minute or two. Do not let it stand in for a diagnosis, a preventive medicine, or an urgent assessment of a headache that is new, severe or changing.