夫阴阳运合，男女成形，已分九窍四肢，乃五脏六腑。部位
各分，顺逆难明。若凭寸口之浮沈，必乃横亡于孩子。须明虎
口，辨别三关，参详用药，必无差误。未至三岁，只(1)看虎口，
男左女右，从第二指第一节名风关，若脉见，初交病;第二节为
气关，脉见，则难治;第三节为命关，脉见，则死。又当辨其色，
若三关青，四足惊，三关赤，水惊;三关黑。人惊。紫色泄痢!
黄色雷惊。三关脉通度，是急惊之症，必死，余病可治。或青或
红，有纹如线一直者。是乳食伤脾及发热惊;左右一样者，是惊
与积齐发。有三条，或散是肺生风痰，或似拘蛤声，有育是伤寒
及嗽，如红火是泻，有黑相兼主下痢。红多白痢·黑多是赤痢;
有紫相兼加渴不虚。虎口脉纹乱，乃气不和也。盖脉纹见有色(2)
着，曰黄、红、紫、青、黑，由其病甚。色能加变。如黄红之
色，红盛作紫;红紫之色，紫盛作青，紫青之色，青盛作黑;青
黑之色，至于纯黑之色者，不可治矣。又当辨，长珠形，主夹积
伤滞，肚腹疼痛，寒热，饮食不化，来蛇形，主中腕不和，积气
攻刺，脏腑不宁，干呕。去蛇形，脾虚冷积泄泻;神困多睡。弓
反里形，主感寒热邪气，头目昏重，心神惊悸、倦怠，四肢稍
冷，小便赤色。弓反外形，主痰热，心神恍惚。作热，夹惊夹
食，风痈证候。錀形、主邪热，痰盛生风，发搐惊风。鱼骨形，
主惊痰热。水字形，主惊，积热烦躁，心神迷闷，夜啼痰盛，口
噤搐攘弱。针形，主心肺受热，热极生风，惊悸烦闷，神困不食，
痰盛搐弱。透关射指，主惊。风、痰、热四症，皆聚在胸膈不散。
透关射指，主惊风恶侯，受惊传入经络，风热发生，十死一生，
难治。此十三位形脉，悉有轻重，查其病根，则详其症。
阴阳二气运行交合，男女形成形体，已经分化出九窍和四肢，进而构成五脏六腑。身体各部位各有区分，顺逆变化难以明了。如果仅凭寸口脉的浮沉来判断病情，必定会导致对幼儿的误诊甚至死亡。必须明察虎口（食指桡侧），辨别三关（风关、气关、命关），详细参详用药，才不会有差错。未满三岁的幼儿，只看虎口脉纹。男左女右，从第二指第一节名为风关，若脉纹显现，表示病初起；第二节为气关，若脉纹显现，则病情难治；第三节为命关，若脉纹显现，则预后不良，主死。还应当辨别脉纹颜色，若三关呈青色，主受惊（伴有四肢抽搐）；三关呈赤色，主水惊；三关呈黑色，主人惊；紫色主泄痢；黄色主雷惊。若三关脉纹贯通直达指尖，是急惊风的症状，必死无疑，其他疾病尚可治疗。若脉纹呈青色或红色，有一条如线般直行的，是乳食损伤脾胃及发热引起的惊风；左右手脉纹相同的，是惊风与积滞同时发作。若有三条脉纹，或散乱的，是肺生风痰；声音似拘挛蛤蟆叫的，有育（疑为“育”字误，结合上下文可能指特定体征或通假，此处依原文保留或理解为伴随症状）表示伤寒及咳嗽；如火红的是腹泻；有黑色相兼的主下痢；红色多白色少的是白痢；黑色多是赤痢；有紫色相兼且口渴但不虚弱的。虎口脉纹紊乱，是气机不和的表现。脉纹显现的颜色有黄、红、紫、青、黑，随着病情加重，颜色会发生改变。如黄红色中，红色盛极转为紫色；红紫色中，紫色盛极转为青色；紫青色中，青色盛极转为黑色；青黑色中，直至纯黑色的，就不可治愈了。还应当辨别脉纹形状：长珠形，主夹积伤滞，表现为肚腹疼痛、寒热往来、饮食不化；来蛇形，主中脘气机不和，积气攻刺，脏腑不安，干呕；去蛇形，主脾虚冷积泄泻，精神困倦多睡；弓反里形，主感受寒热邪气，头目昏重，心神惊悸、倦怠，四肢稍冷，小便赤色；弓反外形，主痰热，心神恍惚，伴有发热、夹惊、夹食，属风痈证候；铤形（原文作“錀形”，推测为铤或类似金属条状），主邪热，痰盛生风，发搐惊风；鱼骨形，主惊痰热；水字形，主惊风，积热烦躁，心神迷闷，夜啼痰盛，口噤抽搐无力；针形，主心肺受热，热极生风，惊悸烦闷，精神困倦不食，痰盛抽搐无力；透关射指，主惊风、痰、热四症聚集在胸膈不散；透关射指，主惊风恶候，受惊传入经络，风热发生，十死一生，难以治疗。这十三种形状的脉纹，都有轻重之分，查清病根，就能详细知晓病症。
The movement and combination of Yin and Yang lead to the formation of male and female bodies, which are divided into nine orifices and four limbs, constituting the five zang organs and six fu organs. Each part of the body has its specific location, making it difficult to discern the favorable (shun) and unfavorable (ni) changes. If one relies solely on the floating (fu) and sinking (chen) pulses at the cunkou (radial artery), mistakes in diagnosing children will inevitably occur. One must clearly examine the tiger's mouth (the radial side of the infant's index finger) and distinguish the three gates (San Guan): Feng Guan (Wind Gate), Qi Gate, and Ming Guan (Life Gate). By carefully analyzing these signs before prescribing medication, errors can be avoided. For infants under three years old, only the tiger's mouth pulse pattern is observed. For boys, the left hand; for girls, the right hand. The first segment of the second phalanx is called Feng Guan; if the pulse pattern appears here, the disease is in its initial stage. The second segment is Qi Gate; if the pattern appears here, the disease is difficult to treat. The third segment is Ming Guan; if the pattern appears here, death is imminent. Furthermore, the color of the pattern must be distinguished: if the three gates appear cyan, it indicates fright (with convulsions of the four limbs); if red, it indicates water fright; if black, it indicates human fright; if purple, it indicates dysentery or diarrhea; if yellow, it indicates thunder fright. If the pulse pattern extends through all three gates to the fingertip, it signifies acute fright syndrome (Ji Jing Feng), which is fatal, whereas other diseases may be treatable. If the pattern is cyan or red with a single straight line like a thread, it indicates spleen injury from milk/food retention and fright due to fever. If the patterns on both hands are identical, it indicates simultaneous occurrence of fright and food accumulation. If there are three lines, or if they are scattered, it indicates wind-phlegm generated by the lungs. A sound resembling a constrained clam suggests taihan (cold damage) and coughing. A fiery red color indicates diarrhea. The presence of black mixed with other colors indicates dysentery; more red than white indicates white dysentery; predominantly black indicates red dysentery. Purple mixed with other colors, accompanied by thirst but not deficiency, indicates a specific condition. A chaotic pulse pattern in the tiger's mouth indicates disharmony of qi. The visible colors of the pulse pattern include yellow, red, purple, cyan, and black, changing as the disease worsens. For instance, when red dominates in a yellow-red pattern, it turns purple; when purple dominates in a red-purple pattern, it turns cyan; when cyan dominates in a purple-cyan pattern, it turns black; and when the pattern becomes purely black, it is incurable. One must also distinguish the shapes of the patterns: "Long Bead" shape indicates food accumulation and stagnation, manifesting as abdominal pain, alternating chills and fever, and indigestion. "Approaching Snake" shape indicates disharmony in the middle jiao, attacking qi causing organ unrest, and dry retching. "Departing Snake" shape indicates spleen deficiency with cold accumulation leading to diarrhea, mental fatigue, and excessive sleep. "Bow Inside" shape indicates invasion by cold-heat pathogens, manifesting as heavy head and eyes, mental fright palpitations, fatigue, slightly cold limbs, and reddish urine. "Bow Outside" shape indicates phlegm-heat, mental confusion, fever, combined fright and food retention, characteristic of wind abscess syndromes. "Bar" shape (interpreted from 'Luan') indicates pathogenic heat, excessive phlegm generating wind, convulsions, and fright. "Fish Bone" shape indicates fright-phlegm-heat. "Water Character" shape indicates fright, irritability from accumulated heat, mental confusion, night crying, excessive phlegm, locked jaw, and weak convulsions. "Needle" shape indicates heat in the heart and lungs, extreme heat generating wind, palpitations, restlessness, mental fatigue, anorexia, excessive phlegm, and weak convulsions. "Penetrating Gate Shooting Finger" indicates that fright, wind, phlegm, and heat syndromes gather in the chest and diaphragm without dispersing. This shape signifies severe fright syndrome where fright transmits to the meridians, generating wind-heat; it is nearly fatal (nine deaths for one survival) and difficult to treat. These thirteen pattern shapes have varying degrees of severity; by investigating the root cause of the disease, the symptoms can be detailed.