Nan Jing (Classic of Difficult Issues)
Overall Paraphrase
The Nan Jing, originally titled Huangdi Bashiyi Nan Jing (The Yellow Emperor's Classic of Eighty-One Difficult Issues), consists of three volumes in total. The authorship and date of compilation have not been definitively established, though tradition attributes it to Qin Yueren (Bian Que) of the Warring States period.
The book is structured in a question-and-answer format, explaining difficult issues, and discusses a total of 81 questions—hence its alternative title, The Eighty-One Difficult Issues. The work focuses primarily on foundational theory, while also touching upon the analysis of certain disease patterns. Among its contents:
- Difficult Issues 1–20: primarily discuss pulse diagnostics;
- Difficult Issues 23–29: primarily discuss the channels and collaterals;
- Difficult Issues 30–47: primarily discuss the viscera and bowels;
- Difficult Issues 48–61: primarily discuss diseases;
- Difficult Issues 62–68: primarily discuss acupoints;
- Difficult Issues 69–81: primarily discuss acupuncture techniques.
The content is concise yet meticulously analyzed, with particularly detailed and precise exposition in the area of pulse diagnostics. In diagnostic methodology, it advocates "taking only the Cunkou" (examining only the radial artery pulse at the wrist) to assess the state of qi, blood, viscera, and bowels throughout the body. In the areas of channel theory as well as the theoretical understanding of the Mingmen (the portal of the body's fundamental vitality, closely related to yang qi within the kidneys) and the Sanjiao (the triple burner—upper, middle, and lower—serving as passages for qi and body fluids), it also expands upon and develops what was found in the Inner Classic. Owing to these characteristics, the Nan Jing makes significant contributions to both TCM theory and diagnostics.
🧠 Deeper Understanding
Core Principles 💡
The primary academic value of the Nan Jing lies in how it systematically organizes and clarifies a number of difficult and scattered issues in early Chinese medicine through its question-and-answer format.
- Q&A format: The term "nan" (难) means "to question" or "difficult issue." Through posing questions and providing answers, the text clarifies passages from classics such as the Inner Classic that were difficult to understand or seemingly contradictory, reflecting the process by which early TCM theory moved toward standardization.
- Structural framework: The eighty-one difficult issues are arranged in roughly the sequence "diagnostics—channels—viscera—diseases—acupoints—acupuncture techniques," forming a theoretical framework that runs from diagnosis to treatment. This demonstrates that the ancients were already attentive to the hierarchical relationships among principle, method, formula, and technique when constructing the TCM system.
- Cunkou pulse taking: This is an important hallmark of the Nan Jing's diagnostic thought. It simplifies the earlier method of taking the pulse at nine sites across three body regions, advocating that the condition of the five viscera, six bowels, qi, and blood can be ascertained from the Cunkou pulse alone—embodying the TCM way of thinking characterized by "seeing the whole from a part" and "perceiving the significant from the subtle."
- Mingmen and Sanjiao: The text further elaborates upon the Inner Classic, gradually elevating "Mingmen" from a generic visceral concept into a distinct entity, highlighting its connection to the foundation of life and primordial qi. The "Sanjiao" is understood as a functional passageway for the movement of primordial qi and the transportation of body fluids. These insights greatly influenced later theories of the Mingmen and Sanjiao pattern differentiation.
Modern Perspective 🌟
Many aspects of the Nan Jing are still valued in the study and clinical practice of TCM today, but they should also be viewed within their historical context.
- Verifiable value: The diagnostic approach of "taking only Cunkou" remains one of the four diagnostic methods in TCM to this day, and its simplicity and holistic orientation hold a degree of practical utility. Modern research has also attempted to interpret pulse changes from such angles as pulse waveforms and hemodynamics. Though not fully equivalent to the classical understanding, this research provides a certain observational lens.
- Historical limitations: Pulse diagnosis carries notable subjectivity, and different practitioners may arrive at different judgments; it cannot serve as a standalone basis for modern medical diagnosis. Concepts such as Mingmen and Sanjiao belong more to the theoretical model of TCM, and should not be equated with specific anatomical organs, nor should they be simplistically mapped onto modern anatomy.
- Issues of authorship and date: The authorship and date of compilation of the Nan Jing remain uncertain. Modern scholars generally consider it not the work of a single author at a single time, but rather a text accumulated and organized over a long period. It should therefore be regarded as a compilation embodying the collective wisdom of ancient medical schools, rather than a work written solely by Bian Que.
Insights for Wellness ⚡
From the Nan Jing's emphasis on pulse diagnosis and the holistic state of qi and blood, some general, non-therapeutic insights can be drawn for everyday life:
- 6 Maintain regular routines in daily life and avoid excessive fatigue, as this supports the stable circulation of qi and blood.
- Pay attention to emotional equilibrium; excessive mood swings are believed to disturb the movement of qi—a principle consistently emphasized in traditional wellness practice.
- Keep moderate eating habits and avoid extremes of cold or heat, guarding against overeating, starvation, or unbalanced preferences, so as to preserve the digestive and transformative functions of the spleen and stomach.
- Traditional pulse diagnosis and channel concepts can serve as reference points for understanding one's physical condition, but it is not advisable to self-diagnose disease based on them; if notable discomfort arises, one should seek diagnosis from a qualified professional physician.
📚 Related Knowledge
- Related concepts: Cunkou pulse, three regions and nine sites pulse taking, Mingmen, Sanjiao, the eight extraordinary vessels, five transport points, reinforcing–reducing needling techniques, the hundred vessels converging in the lungs
- Further reading: Yellow Emperor's Inner Classic: Plain Questions, Discourse on the Subtle Principles of Pulse Examination; Spiritual Pivot, Nine Needles and Twelve Origin Points; Nan Jing, Difficult Issue One; Nan Jing, Difficult Issue Thirty-Six; Nan Jing, Difficult Issue Thirty-Eight; Mai Jing (The Pulse Classic)
Bufa reminder: This content is based on classical TCM texts and is provided solely for the study and appreciation of traditional culture. It does not constitute any medical diagnosis, prescription, or treatment advice. If you feel unwell, please seek medical attention in a timely manner.
