Zhongting

What is CV16?

CV16, or Zhongting, is a point on the front midline of the chest, at the lower end of the breastbone where it meets the small xiphoid tip.

Its name is usually translated as "Central Courtyard". It belongs to the Conception Vessel, the midline channel that runs up the front of the body from the pelvis to the chin. CV16 sits between two better-known neighbours: CV17 (Shanzhong) above it and CV15 (Jiuwei) below it.

Classical texts list CV16 for a narrow group of complaints in the chest and upper stomach: a tight or full chest, food coming back up, belching, hiccups, difficulty swallowing and poor appetite. In traditional thinking, the point is said to help "rebellious" energy in the chest settle downwards. It is taught in most point curricula, but it is used far less often than CV17.

Here is the honest verdict on the evidence. We found no controlled human trials testing finger pressure on CV16 for any condition. The acupressure evidence base as a whole is mostly small, short-term and unblinded, which means results are easily influenced by expectation. A handful of points do better than that — PC6 for nausea and vomiting has genuinely decent human trials behind it — but CV16 is not one of them.

Two things are worth saying once, clearly, so they do not need repeating in every section below. First, the fact that a point has been named and used for centuries is not evidence that it works. Second, long traditional use is not evidence that it is safe for you. CV16 sits directly over the lowest part of the breastbone and the xiphoid process, a small piece of cartilage and bone that can be tender and, under heavy force, can be injured. That makes the safety section on this page more than a formality.

Everything described here is self-applied finger pressure on unbroken skin. Nothing on this page involves needles.

Where is CV16 and how do you find it?

CV16 sits on the body's front midline, in the small dip where the flat breastbone ends and the softer xiphoid tip begins.

• Start at the notch at the base of your throat. Place a fingertip in the U-shaped hollow between your collarbones. This is the top of the breastbone and your reference point for the whole midline.
• Run your finger straight down the breastbone. Keep to the centre. You will feel a firm, slightly ridged plate of bone under the skin, about 15 to 18 cm long in most adults.
• Feel for the bottom edge. Where the firm bone ends, you will often feel a small step, a change in texture, or a shallow dip. In many people this is just where the lowest ribs angle away to each side, forming a V.
• That junction is CV16. It lies on the midline at the joint between the body of the breastbone and the xiphoid process, roughly level with the fifth rib space. Classical texts place it 1.6 cun above CV15, which is about one and a half thumb-widths.
• Check against CV17. CV17 is higher, on the midline level with the nipples in most men and with the fourth rib space in most people. If your finger is level with the nipple line, you are on CV17, not CV16. Slide down about two to three finger-widths.

Use the flat pad of one finger, not a nail or a knuckle. The spot is often mildly tender even in healthy people, because the xiphoid area is sensitive by nature. Tenderness alone does not mean you have found something wrong.

If you cannot feel a clear step at the bottom of the breastbone, do not go hunting for it with force. The xiphoid tip varies a lot between people and points forward in some. Stay on the surface of the bone and never hook a finger underneath it.

How do you apply pressure to CV16?

1. Sit upright and settle first. Sit on a chair with your back supported and your shoulders loose. Take two slow breaths before you touch the point, so your chest is not braced.
2. Use the flat pad of one finger. The index or middle finger works best. Never use a knuckle, a thumbnail, a pen cap or any hard tool on this part of the chest.
3. Press straight back, very gently. Aim your pressure towards the spine, not upwards or down under the bone tip. Start so light that you barely dent the skin.
4. Build to a mild, tolerable level only. You want a dull sense of contact, not a sharp or bruising feeling. This area is more sensitive than a fleshy point such as LI4, so far less force is needed.
5. Hold for 30 to 60 seconds. Keep breathing normally through the hold. Some people prefer small, slow circles instead; either is fine, as long as the skin moves with the finger rather than scraping under it.
6. Release slowly and rest. Lift the finger over a second or two. Wait at least a minute before repeating.
7. Repeat up to two or three times per session. Once or twice a day is plenty. There is no reason to think more pressure or longer holds give more benefit.

Stop straight away if you feel sharp pain, a cracking or clicking sensation, pain that spreads to the jaw, neck or arm, breathlessness, dizziness, or a racing heart. Stop also if the skin becomes red and sore, or if tenderness lingers into the next day.

Do not press through clothing with zips, buttons or seams over the spot, and do not press on a full stomach straight after a large meal. Keep the whole routine to a few minutes. If a symptom needs daily pressure for weeks to stay bearable, that is a sign to get it looked at properly rather than to press harder.

What is CV16 traditionally used for?

• Chest tightness and fullness. The main classical use is a sense of oppression or stuffiness in the chest. There are no controlled human trials of finger pressure on CV16 for this, and chest tightness has serious causes that need ruling out first.
• Reflux and food coming back up. Texts list CV16 for regurgitation, belching and difficulty swallowing, on the traditional idea of settling upward-moving energy. Human evidence is absent; proven reflux treatments include diet changes, posture and medication.
• Hiccups. Midline chest and upper-abdomen points, CV16 among them, appear in traditional hiccup protocols. Evidence here is limited to case reports and small uncontrolled series, mostly using needles at other points, so nothing specific supports pressing CV16.
• Nausea and poor appetite. CV16 is sometimes suggested for queasiness and loss of appetite. If nausea is your concern, PC6 on the inner forearm is the point with real support: multiple controlled trials show a modest but genuine benefit for nausea after surgery, in pregnancy and with chemotherapy. CV16 has nothing comparable.
• Infant milk regurgitation. Some classical sources mention CV16 for babies bringing up milk. We do not recommend pressing this point on an infant. A baby's xiphoid area is soft and easily injured, and persistent vomiting in an infant needs a doctor, not a pressure point.
• A focus for slow breathing. Resting a finger on the lower breastbone while breathing slowly can feel calming. That effect comes from the breathing and the pause, and it is honest to call it that rather than a specific action of CV16.

In short, CV16 has a clear traditional role and no meaningful human research behind it. Pressing it gently is low-cost and, for most healthy people, low-risk. Treat anything you feel as comfort rather than treatment, and keep looking for the cause of a symptom that keeps returning.

Are there tips for using CV16 effectively?

• Find the bone first, then ease off. Locate the lower edge of the breastbone with a firmer touch, then lighten your pressure right down before you start the actual hold. Accuracy matters more than force on the midline.
• Press on the out-breath. The chest wall is softer and less braced as you breathe out. Letting your pressure settle on a slow exhale is more comfortable and keeps you from pushing against a rigid ribcage.
• Keep sessions short. One to three holds of under a minute is enough. Long sessions on a bony midline point mostly produce soreness, not benefit.
• Stay on top of the bone. Direct your pressure backwards into the breastbone itself. Never curl a fingertip under the xiphoid tip, which is where injury and real pain come from.
• Pair it with the obvious fix. If reflux is the problem, raising the head of the bed, eating earlier and avoiding late alcohol do more than any point. Use CV16 alongside those, not instead of them.
• Use PC6 when nausea is the issue. PC6 on the inner forearm, about three finger-widths above the wrist crease between the two tendons, has the strongest human evidence of any acupressure point for nausea. It is also a safer place to press firmly.
• Keep a two-week note. Write down the symptom, its severity out of ten, and whether you pressed. Patterns over two weeks tell you far more than how you feel in the minute after a session.
• Warm the area first. A warm shower or a warm flannel on the chest for a minute makes the skin and muscle less reactive, so you need less pressure for the same sensation.
• Trim your nails. A short nail is the difference between pressure and a scratch on thin skin over bone.

One broader tip: decide in advance what would count as "no use". If two weeks of regular, gentle pressure changes nothing, that is useful information. Stop and spend the effort on something that does help.

What do people get wrong with CV16?

• Expecting a cure. The commonest mistake is treating CV16 as a fix for reflux, hiccups or chest tightness. No acupressure point cures these, and a page promising otherwise is not being straight with you.
• Confusing it with CV17. CV17 sits higher, level with the nipple line and the fourth rib space. People follow a video for CV16 and end up two to three finger-widths too high. CV16 is at the bottom of the breastbone, not the middle.
• Confusing it with CV15. CV15 is below the xiphoid tip, in the soft upper abdomen. Pressing there with force is a bad idea and is not what this page describes. CV16 is still on bone.
• Hooking under the xiphoid. Digging a fingertip up and under the bony tip can bruise cartilage and cause pain that lasts days. Press straight back, on the surface, always.
• Using it for unexplained chest pain. This is the dangerous one. Pressure over the breastbone will not help a heart problem, and the minutes spent trying it are minutes lost. Chest pain with sweating, breathlessness, or pain spreading to the arm or jaw means emergency help now.
• Equating tenderness with a diagnosis. The lower breastbone is tender in plenty of healthy people. A sore spot there does not confirm a blocked channel, a stomach problem or anything else.
• Pressing harder when nothing happens. More force on a bony midline point gives bruising, not results. If gentle pressure does nothing, firm pressure will not either.
• Replacing medication with it. People sometimes stop reflux or heart medication to "try the natural route". Do not change prescribed treatment without talking to the prescriber.
• Using it on a baby. Infant protocols circulate online. An infant's chest is far too fragile for this, and persistent vomiting in a baby is a reason to call a doctor.

What does the research on CV16 actually say?

There is essentially nothing. We found no controlled human trials, and no useful uncontrolled human studies, testing stimulation of CV16 (Zhongting) for chest tightness, reflux, hiccups, nausea or anything else. That is the honest answer, and it is also the usual answer for individual minor points.

What exists is descriptive. CV16 appears in standard point-location references and acupuncture textbooks, with its traditional indications listed. Those sources record what the tradition says; they are not research into whether the point does anything measurable.

Where chest-midline points have been studied at all, trials have overwhelmingly used CV17 (Shanzhong), not CV16, and usually as one point within a multi-point needling protocol. That design cannot tell you what any single point contributed, and it tells you nothing about finger pressure.

It is worth being clear about why the wider acupressure literature is weak. Most trials are small, run for days or weeks rather than months, and cannot blind participants, since people know whether they are being pressed. Expectation strongly shapes reported symptoms like tightness, queasiness and discomfort. So even a positive small trial on a point like this would need replication before it meant much.

The contrast with PC6 is the useful one. PC6 for nausea and vomiting has been tested in many controlled trials across surgery, pregnancy and chemotherapy, including with sham-point comparisons. The effect is modest, not miraculous, but it is real enough to be taken seriously in reviews. That is what decent evidence for an acupressure point looks like, and CV16 has no equivalent.

What does the gap mean in practice? It does not prove CV16 is useless. It means nobody can tell you how likely it is to help, how much, or for whom. Treat gentle pressure on CV16 as something you are trying, not something that has been shown to work, and keep a persistent symptom under proper medical review.