Tongtian

What is BL7?

BL7 (Tongtian) is a Bladder channel point on the top of the head, slightly in front of and to the side of the crown.

Its Chinese name, Tongtian, is usually translated as "heavenly connection" or "reaching heaven" — a reference to its high position on the skull rather than to any measured effect. It is the seventh point of the Bladder channel, which runs from the inner eye, over the head, down the back and leg, and ends at the little toe.

In classical and modern Chinese medicine texts, BL7 belongs to a cluster of scalp points used for the nose and the head: blocked or runny nose, loss of smell, heaviness in the head, dizziness and headache at the top of the skull. It appears in standard point curricula, but it is a secondary point rather than a headline one, and most practitioners reach for other points first.

What does the evidence say?

Honestly: there is essentially no human research on BL7 by itself, and none at all on pressing it with a finger. Acupuncture trials for hay fever and migraine almost always use other points, so nothing can be read across to BL7 specifically. The reasonable expectation is a pleasant, temporary easing of scalp and head tension — the same thing any gentle head massage gives.

Two things worth stating once, clearly, because they apply to this whole page. First, a long traditional pedigree is not evidence that a point works; centuries of use tells you what people believed, not what happens in a controlled test. Second, that pedigree is not evidence of safety either — old texts were not written with head injuries, scalp surgery or blood thinners in mind. The safety advice further down this page is based on modern common sense about pressing on a skull, not on tradition.

Everything described here is self-applied finger pressure on unbroken skin. Nothing on this page involves needles, heat or anything that breaks the skin.

Where is BL7 and how do you find it?

BL7 sits on the top of the head, about two thumb-widths to the side of the midline and one thumb-width forward of the crown.

• Find the midline first. Run a finger from the middle of your forehead, up over the hairline, straight back across the top of your skull. That centre line is your reference for everything else.
• Find the crown reference. Feel the tip of each ear and imagine a line joining them over the top of your head. Where that line meets the midline is the crown point (GV20). BL7 is not there — it is the next step.
• Step forward one thumb-width. From the crown, slide forward along the midline about 2.5 cm (one thumb-width, or 1 cun).
• Step out to the side. From that spot, move sideways about 3.5 to 4 cm (roughly two thumb-widths, or 1.5 cun). That is BL7. There is one on each side of the head.
• Check against the hairline. The classical measurement is 4 cun above the front hairline and 1.5 cun out from the midline. On most adults that is about 10 cm back from the hairline and 4 cm to the side.

The scalp here is thin and sits straight on bone, so you will not find a hollow or a notch. What you can feel is a slightly tender, slightly tight patch when you press in small circles. Part the hair with your fingers so you are touching skin rather than pushing hair against the scalp.

If you are unsure whether you are on BL7 or a neighbouring Bladder point such as BL6 in front or BL8 behind, it genuinely does not matter much for finger pressure — the whole strip responds much the same to gentle massage. Work the area, not a pinpoint.

Never apply pressure to a spot on the scalp that is cut, scabbed, swollen or sore for a reason you cannot explain.

How do you apply pressure to BL7?

1. Sit down first. Head and scalp pressure makes some people briefly lightheaded. Sit in a chair with your elbows supported so your arms do not tire.
2. Part the hair. Use your fingers to open a small parting so the pad of your finger meets scalp, not a cushion of hair.
3. Use a fingertip pad. The index or middle finger works best. Many people prefer to use the same finger on each side in turn; others press both sides at once with both hands.
4. Press gently. Aim for about 3 out of 10 on a discomfort scale — a firm, dull awareness, never a sharp or bright pain. The scalp has very little padding over the bone, so less force is needed than on an arm or leg.
5. Hold or circle. Either hold steady pressure for 30 to 60 seconds, or make small circles that move the scalp over the bone rather than dragging your finger across the skin.
6. Do both sides. BL7 is paired. Treat the left and the right, roughly the same amount each.
7. Repeat sparingly. One to three short sessions a day is plenty. A whole session need not last more than three or four minutes.

When should you stop?

• Pain that sharpens. Stop immediately if the pressure becomes sharp, burning or shooting rather than a dull ache.
• A headache that worsens. If your head hurts more during or after pressing, stop and do not repeat it. Some headaches are made worse by scalp pressure.
• Dizziness or nausea. Stop, lower your hands and sit still until it passes.
• Skin changes. Redness that lasts more than an hour, tenderness the next day, or any bruising means you pressed too hard.

Keep fingernails short and hands clean. Never use a hard tool, a pen cap or a massage stick on the skull — fingers only, and nothing that could break the skin.

What is BL7 traditionally used for?

• Blocked or runny nose. This is BL7's main traditional job: nasal congestion, a constant drip, sneezing, and what old texts call "nasal obstruction". Human evidence for BL7 specifically is absent. Trials of acupuncture for hay fever exist and are mixed, but they use other points, so they say nothing about this one.
• Loss of smell. Classical sources list BL7 for reduced or absent sense of smell, usually alongside nasal congestion. No human study has tested finger pressure on BL7 for smell loss. If your sense of smell has gone and not returned, that needs a doctor, not a scalp point.
• Headache at the top of the head. Tradition uses BL7 for heaviness, pressure or pain felt at the crown. Gentle scalp massage does relieve some tension-type headaches for a short while, which may be all that is happening here. No controlled trial has isolated BL7.
• Dizziness. Listed in traditional indications for lightheadedness and a "foggy" head. There is no human evidence for this, and dizziness has many causes — some of them serious — that deserve a proper diagnosis.
• Facial and nasal swelling. Older sources mention BL7 for puffiness around the face and nose and for nasal polyps. There is no modern evidence that pressing a scalp point shrinks swelling or tissue growths of any kind.
• General relaxation. The most defensible everyday use. A minute of unhurried scalp pressure feels calming for many people. That is a real, if modest and short-lived, effect of touch rather than a property of this specific location.

How should you hold these claims?

Treat BL7 as a comfort measure with a long traditional history and almost no test record. It may make a stuffy head feel briefly easier. It will not clear an infection, shrink a polyp or replace an antihistamine, a decongestant or an inhaler your doctor has prescribed.

What might regular use of BL7 help prevent?

No credible evidence supports BL7 for preventing anything. The claims below are traditional only, and are listed so you can recognise them when a video or article repeats them.

• Recurring nasal congestion. Some traditional practitioners suggest working the nose-related scalp points through a hay fever season, hoping to blunt how blocked the nose gets. No trial has tested this for BL7, with needles or with fingers. If pollen or dust reliably sets you off, proven preventive options — starting a steroid nasal spray before the season, antihistamines, reducing exposure — are what actually have the evidence.
• Repeat tension headaches. The tradition frames regular crown-area pressure as a way to stop head tension building. The honest version is narrower: short, gentle self-massage is a reasonable relaxation habit, and relaxation habits help some people with tension headaches. That is a general finding about relaxation, not a finding about BL7.
• Everyday head heaviness. A traditional maintenance idea rather than a medical one. If your head feels heavy or foggy most days, look at sleep, hydration, screen time, caffeine and eyesight before you look at a point on your skull.

What to do instead if prevention matters to you

• Get the diagnosis first. Repeated congestion can be allergy, a deviated septum, chronic sinusitis or nasal polyps. Each is managed differently, and none of them is managed by acupressure.
• Keep BL7 as the extra, not the plan. Using it alongside treatment that works is fine. Using it instead of that treatment is how a manageable problem becomes a long-running one.
• Judge it honestly. If you want to try it for a season, note how your symptoms actually run. Symptoms rise and fall on their own, which makes any habit look effective if you are not paying attention.

Are there tips for using BL7 effectively?

• Sit, do not stand. Pressing on the top of your head with your arms raised is a reliable way to feel briefly woozy. A supported chair solves it.
• Work the strip, not the dot. BL7 sits in a line of Bladder points running front to back over the skull. Slow circles over a couple of centimetres around the spot are more comfortable and just as useful as hunting for an exact point.
• Less force than you think. There is almost no cushioning between scalp and bone here. Pressure that feels mild on a shoulder feels harsh on a skull. Start light and add only if it stays comfortable.
• Move the skin, not over it. Let your fingertip take the scalp with it as you circle. Rubbing across dry skin and hair causes soreness and, over time, irritation at the roots.
• Pair it with breathing. Slow nasal breathing — or slow mouth breathing if your nose is blocked — during the hold is where a good part of the calming effect comes from.
• Try it when congested, not as a ritual. Tradition links BL7 to the nose. If you want to see whether it does anything for you, use it when your head actually feels stuffy, so you have something to compare.
• Give it a fair, limited trial. Two weeks of short daily sessions is enough to form a view. Jot down a one-line note each day. If nothing has shifted, let it go rather than drifting on out of habit.
• Keep steam and saline in the picture. For a blocked nose, saline rinses and warm steam have better support than any acupressure point. Use BL7 as the pleasant extra on top.
• Clean hands, short nails. Scalp skin scratches easily, and a scratch under the hair is awkward to see and easy to infect.
• Skip it when you are already sore. A tender, bruised or sunburnt scalp does not want pressure. Wait until it has settled.

What do people get wrong with BL7?

• Expecting a cure. The biggest error. BL7 will not cure hay fever, sinusitis, nasal polyps or migraine. At best it offers brief, modest comfort. Going in expecting more leads people to delay treatment that would genuinely help.
• Confusing it with the crown point. Many videos show someone pressing GV20 at the very top of the midline and calling it BL7. BL7 is off the midline, about two thumb-widths to the side, and a thumb-width further forward. There is one on each side.
• Pressing far too hard. The skull is unyielding, so all the force goes into thin skin and the tissue beneath it. Hard pressure here causes tenderness that lasts into the next day and can make a headache worse, not better.
• Using a tool. Pens, keys, massage sticks and hard rollers on the skull risk grazing the scalp. Fingers only.
• Pressing through hair. Mashing hair against the scalp tugs at the roots and gives poor contact. Part the hair and touch skin.
• Treating an undiagnosed headache. A headache that is new, severe, different from your usual pattern, or waking you at night needs assessment. Massaging your scalp instead is not a neutral choice; it uses up time.
• Pressing over a lump or sore spot. Any swelling, mole, scab or painful bump on the scalp should be looked at, not rubbed.
• Doing it on a baby. Firm scalp pressure has no place on an infant, and the soft spot must never be pressed at all.
• Overdoing it in one go. Ten minutes of grinding at one spot does not beat one minute of gentle work. It just makes the area sore.
• Dropping proven treatment. People sometimes stop a nasal spray or antihistamine to "see if acupressure works on its own". That is how a controlled allergy becomes an uncontrolled one.

What does the research on BL7 actually say?

There is no useful human research on BL7 on its own, and none at all on self-applied finger pressure at this point. That is the plain answer, and it has not changed.

BL7 does appear occasionally inside multi-point acupuncture protocols, mostly in studies of allergic rhinitis (hay fever) and headache. In those trials, practitioners needled a set of points together — commonly LI20 beside the nose, Yintang between the eyebrows, LI4 on the hand and GB20 at the base of the skull — and BL7 was sometimes among the extras. That is a description of what those trials did, not an instruction; needling is a clinician's procedure and is outside what this library covers.

The problem with reading anything into those results is simple. When many points are used at once, a positive result cannot be traced to any single one of them. No trial has compared a protocol with BL7 against the identical protocol without it. So even where a multi-point study reported benefit, it provides no support for BL7 specifically, and certainly none for pressing it with a finger.

The wider acupressure literature has the same weaknesses throughout: small groups, short follow-up, and participants who know what they are receiving. Head and scalp techniques are especially hard to test, because a convincing sham is difficult to design and expectation strongly influences reported headache and congestion scores.

What that means for you

Treat BL7 as untested rather than disproved. Untested means nobody has shown it does what tradition claims, and nobody has shown it does not. For a gentle, self-applied scalp technique on healthy skin, the risk of trying it is low — but so is the reasonable expectation. Any relief you notice may be the general comfort of touch, slow breathing, or simply the symptom easing on its own.

If congestion, loss of smell, dizziness or headache persists, the useful next step is a diagnosis, not more pressure.