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Chen Feixia stated: When observing the fingerprint while the body is at rest, if it appears red-yellow, the bright red color often results from internal cold. A faint yellow hue indicates inherent deficiency-cold; do not mistake deep red for heat. Purple at the Guan position (middle section of the finger) is a sign of heat, while green represents wind, as described in ancient texts. Food stagnation leads to purple-green colors, and rebellious phlegm-qi also presents similarly; if all three sections (Feng, Qi, Ming) show blue-black, the prognosis is dire and difficult to overcome.

Chen Feixia stated: A faint fingerprint color is also alarming, generally indicating weak congenital endowment. The Spleen and Stomach are inherently deficient with weak Middle Qi; one must guard against using purgative or attacking methods that damage the infant's constitution. Stagnation and roughness at the Guan position occur because pathogenic factors obstruct Ying-Qi (Nutritive Qi) and Wei-Qi (Defensive Qi). If food stagnates in the Middle Jiao and wind-heat blazes, what other recourse is there but to employ pushing and purging methods?

Chen Feixia stated: Abdominal pain with the fingerprint extending to the center of the palm, curving inward, indicates sequential invasion by wind-cold. A white fingerprint curving outward suggests phlegm, food stagnation, or heat; a water-shaped (black) fingerprint indicates injury to the Yin of both the Spleen and Lung. He further said: When examining the fingerprint, use the side of your thumb to push along the Feng, Qi, and Ming sections of the child's index finger towards the tip. Never push in reverse (from tip to root). Because the whorl has fire properties that counteract Lung Metal, the fingerprint color will inevitably change. Moreover, one should only push from the Ming Guan towards the Feng Guan, never from the Feng Guan outwards to the Ming Guan, otherwise the fingerprint becomes more exposed the more it is pushed. If the fingerprint originally did not reach the Ming Guan but is forced out by incorrect pushing, it severely damages Lung Qi. Be extremely cautious. The above judgments regarding exterior-interior, cold-heat, and deficiency-excess are well-founded. As long as these six characters (Exterior, Interior, Cold, Heat, Deficiency, Excess) are clearly recognized during clinical practice, one will have inner autonomy; even if not perfectly accurate, the error will be small. Merely covering up with "fright syndrome" is insufficient for handling complex cases. Upon morning self-reflection, I feel ashamed. I hope my colleagues will encourage each other to improve their skills.

Chen Feixia stated: Children aged three to five can have their pulse taken. However, their wrists are short and rapid, making it difficult to distinguish the Cun, Guan, and Chi positions. Using only one finger to assess the pulse is indeed difficult. The *Huangdi Neijing* uses four pulse qualities—Large, Small, Slow, and Urgent—as standards for pediatric diagnosis. Not fearing overstepping, I interpreted its intent and changed them to Floating, Deep, Slow, and Rapid, determining deficiency and excess by forcefulness. This seems clearer than Large/Small/Slow/Urgent, and later scholars should reflect on this.

The Yellow Emperor asked: What is the condition when an infant suffering from heat disease has a hanging-small (suspended and thin) pulse? Qibo replied: Survival is indicated if the hands and feet are warm; death is indicated if they are cold. The Yellow Emperor asked: When an infant contracts wind-heat and exhibits wheezing with barking sounds and shoulder breathing, what should the pulse be like? Qibo replied: In cases of wheezing with barking sounds and shoulder breathing, the pulse is Excess-Large. A slow/relaxed quality indicates survival; an urgent/tight quality indicates death.

Chen Feixia stated: This is the essence of the *Neijing*. The Sage's words cover everything comprehensively, yet people fail to realize this, treating it as ordinary. Focusing here captures half the essence of diagnosis. My clinical accuracy, regardless of outcome, stems from this principle. It is hard to express fully in words. I carefully examined the *Neijing*'s mention of Large, Small, Slow, and Urgent, which implies hidden meanings. Essentially, "Large" corresponds to Floating-Hong, "Small" to Deep-Fine, "Urgent" to Rapid, and "Slow" to Delayed. Is it not better to directly use Floating, Deep, Slow, and Rapid? Combined with Jie'an's method of distinguishing Exterior-Interior and Deficiency-Excess via Forceful vs. Forceless pulses, this is indeed a natural and indispensable key for pediatric diagnosis. Jie'an was an ordinary person who could distinguish Yin-Yang, Exterior-Interior, Cold-Heat, and Deficiency-Excess using just forcefulness. Though simple and plain, it is highly accurate. Who says modern practitioners cannot match the ancients?