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Chapter 19 of 28
濒湖脉学
Overall Paraphrase
The scattered pulse belongs to the Yin pulse category in the yin-yang classification. Its pulse characteristics are: the pulse form is floating, large, and diffuse; it feels floating and large with light pressure, but loses its root with heavy pressure—the so-called "present at the surface, absent in the interior." The pulse lacks governance and restraint, with irregular rhythm; sometimes it comes more and goes less, sometimes it goes more and comes less, drifting like catkin flowers scattering without any pattern.
Dai Tongfu held that: if the heart pulse is floating and large with a slight scattered quality, or the lung pulse is short and rough with a slight scattered quality, and if there remains a gentle and moderate quality, it may be classified as a normal pulse. If the heart pulse is soft and scattered, it is often seen in palpitations; if the lung pulse is soft and scattered, it is often seen in excessive sweating; if the liver pulse is soft and scattered, it often indicates diffuse fluid retention (edema caused by fluid spreading through the skin); if the spleen pulse is soft and scattered, it often indicates edema of the lower legs—these belong to pathological pulses. If the kidney pulse is soft and scattered, it often indicates various deficiency-consumption disorders; if intermittent-scattered pulse is seen, the ancients regarded it as a mortal pulse. The Nanjing states: when the scattered pulse appears alone, the condition is critical. Physician Liu held that: the scattered pulse is a sign of dual deficiency of qi and blood, with the root separating; if a woman in labor shows a scattered pulse, it may be a sign of impending delivery; if a pregnant woman shows a scattered pulse, there may be risk of miscarriage.
Verse on Form—Paraphrase: The scattered pulse drifts like willow catkins, coming and going irregularly with unstable rhythm; in a laboring woman it may signal imminent delivery, in a pregnant woman it may indicate miscarriage; in those with prolonged illness, the ancients considered the prognosis extremely poor.
Verse on Comparison—Paraphrase: The scattered pulse is unconstrained and diffuse, not gathered; the soft pulse is floating, thin, and yielding, like cotton in water; floating, large, and slow with no force is the deficient pulse; the hollow pulse is hollow in the center while the two borders remain relatively distinct.
Verse on Indications—Paraphrase: Scattered pulse at the left cun primarily indicates palpitations; at the right cun, excessive sweating; soft-scattered at the left guan primarily indicates diffuse fluid retention; at the right guan, edema of the lower legs and feet; if scattered pulse appears at both chi positions, the ancients believed kidney qi was dispersing and spirit was failing, with a very poor prognosis.
The core of the scattered pulse is "root qi insecurity and qi-blood dispersion." A normal pulse emphasizes the presence of stomach (gentleness), spirit (vitality), and root (depth)—that is, the pulse should be gentle, vibrant, and palpable at the deep level. The scattered pulse, being floating, large, rootless, and irregular in rhythm, indicates that original qi cannot govern the blood vessels and that qi and blood cannot be retained internally—a manifestation of relatively severe deficiency.
Among these, "present at the surface, absent in the interior" is the diagnostic key: floating and large with light pressure, but rootless with heavy pressure, indicating that qi floats externally while the foundation is unstable. Regarding indications, the ancients used the cun, guan, chi positions to correspond to specific organs: left cun for the heart, right cun for the lungs, left guan for the liver, right guan for the spleen, and both chi for the kidneys. The appearance of the scattered pulse at different positions suggests dispersion of qi and blood in the corresponding organs.
In the comparison verse, the scattered pulse shares the quality of "deficiency" with the soft pulse, deficient pulse, and hollow pulse, but each has a different emphasis: the soft pulse is floating, thin, and yielding; the deficient pulse is floating, large, and slow with no force; the hollow pulse is hollow in the center with solid borders; while the scattered pulse is rootless, disorderly, and irregular in rhythm. This reflects the refined discrimination of "deficiency" in ancient pulse diagnosis.
From a contemporary standpoint, descriptions such as "miscounted beats, coming more and going less, going more and coming less" bear similarity to the irregular rhythm, variable strength, and pulse deficit seen in certain severe cardiac arrhythmias. The scattered pulse's "present at the surface, absent in the interior" may also relate to conditions of circulatory insufficiency or weakened peripheral pulses. However, these are empirical correspondences at the level of symptoms and signs, and ancient pulse designations should not be directly equated with modern disease names.
"A woman in labor with this pulse will deliver; a pregnant woman with this pulse may miscarry" and "a chronic illness meeting this pulse need not be treated" are ancient prognostic judgments that reflect the observational experience of their time. They carry historical limitations and should not be applied literally. In modern practice, if a chronically ill patient presents with severely irregular pulse rhythm or a floating, large, rootless pulse, prompt medical evaluation should be undertaken rather than making prognoses based on ancient texts. TCM pulse diagnosis itself is highly subjective and lacks unified quantitative standards—it is best studied as traditional theory and methodology.
From the principle that the scattered pulse indicates "dual deficiency of qi and blood, with root separation," daily health preservation should emphasize restraint and internal retention, avoiding prolonged excessive depletion. Points to note:
This content is based on classical Chinese medicine texts and is provided solely for traditional cultural study and research. It does not constitute any medical diagnosis, medication, or treatment advice. Please seek timely medical attention if you are unwell.