The 28 pulses of Chinese medicine
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In traditional Chinese medicine, taking a pulse is not just about counting the number of beats per minute. The practitioner also seeks to determine how the pulse feels under their fingers.
1. The 28 pulses of Chinese medicine
Is it superficial or deep? Fast or slow? Strong or weak? Slippery or rough? Long or short? Regular or interrupted?
Chinese tradition has gradually developed a comprehensive tactile vocabulary to describe these sensations.
These include:
- Fu 浮, the superficial pulse;
- Chen 沉, the deep pulse;
- Chi 迟, the slow pulse;
- Shuo 数, the rapid pulse;
- Shi 实, the full pulse;
- Xu 虚, the empty pulse;
- Hua 滑, the slippery pulse;
- Se 涩, the rough pulse;
- Xian 弦, taut like a bowstring;
- Hong 洪, which evokes a great wave.
In total, the classic classification commonly taught includes 28 pulse qualities. However, these qualities do not function as 28 independent diagnoses. A single pulse can exhibit several characteristics simultaneously.
For example, one might perceive a pulse that is deep, slow, and weak.
It is precisely the combination of characteristics, their location, and other observed signs that then allow for an interpretation in Chinese medicine.
Learning the pulses therefore consists first of developing a vocabulary of touch.
Before seeking to understand what a pulse means, one must learn to recognize what one is feeling.
2. Cun, Guan, and Chi: why three fingers?
When a Chinese practitioner examines the radial pulse, they generally place three fingers on each wrist. These three positions are named:
- Cun 寸 — The Inch
- Guan 关 — The Barrier
- Chi 尺 — The Foot
The index finger is placed on Cun, the middle finger on Guan, and the ring finger on Chi.
The Guan position serves as an important landmark because it is located at the level of the radial styloid process.
However, Chinese medicine is not solely concerned with the pulse position.
At each of these zones, the practitioner can also vary the pressure applied by their fingers to explore different levels of depth.
This allows them to obtain a true tactile map of the pulse.
The various positions are traditionally linked to the functions of the Organs and Bowels in Chinese medicine. These correspondences have, however, varied according to different texts, periods, and schools of thought.
One must therefore avoid a overly mechanical interpretation such as:
one position = one organ = one disease.
Pulse palpation relies on a much more holistic analysis.
The position helps us understand where to look. The quality of the pulse helps us understand how the imbalance is manifesting.
3. Superficial and deep pulses: what is the difference?
Depth is one of the first elements observed during Chinese pulse palpation. Imagine your fingers gradually exploring several different levels.
At the first level is Fu 浮, the floating or superficial pulse. It is easily perceptible with light or moderate pressure, then tends to diminish as you press harder.
At the opposite end is Chen 沉the deep pulse. It is barely perceptible with light pressure and becomes much clearer when the practitioner increases pressure.
There is an even deeper one: Fu 伏the hidden pulse. This one requires very significant pressure and can sometimes only be felt by pressing deeply toward the bone.
A visual aid makes this progression easy to remember:
- Fu 浮 → at the surface
- Chen 沉 → at the bottom
- Fu 伏 → hidden at the very bottom
In Chinese medicine, depth provides information regarding whether a condition is external or internal. However, it should never be interpreted in isolation. A deep, strong pulse does not have the same meaning as a deep, weak pulse. It is the combination of different qualities that gradually builds the interpretation.
4. The main oppositions of the Chinese pulse
Memorizing 28 pulse qualities can seem difficult. A simpler method is to start with a few key tactile oppositions.
Depth
Fu 浮 — superficial ↔ Chen 沉 — deep
Speed
Chi 迟 — slow ↔ Shuo 数 — fast
Strength
Xu 虚 — deficient, weak ↔ Shi 实 — excess, strong
Length
Duan 短 — short ↔ Chang 长 — long
Here, "short" does not mean the beat lasts for less time. It refers to the length over which the pulse is perceptible under the fingers.
Texture
Hua 滑 — slippery ↔ Se 涩 — rough
Hua traditionally gives the impression of something rolling easily under the fingers, while Se provides a less fluid, more difficult sensation. These oppositions allow you to build an initial mental framework:
Where is the pulse? How fast is it beating? Is it strong? What length does it occupy? What sensation does it provide?
Once this structure is mastered, more specific qualities become much easier to recognize and memorize.
Pulse diagnosis therefore begins not with memorizing dozens of diseases, but with the methodical learning of sensations.
Author: Christophe Prost, founder of Hui Zhen.