医之为艺诚难矣，而治小儿为尤难。自六岁以下，黄帝不载其说，始有《颅囟经》，以
占寿
然小儿脉微难见，医为持脉，又多惊啼，而不得其审，其难二也。脉既难凭，必资外证。而
其骨气未成，形声未正，悲啼喜笑，变态不常，其难三也。问而知之，医之工也。而小儿多
未能言，言亦未足取信，其难四也。脏腑柔弱，易虚易实，易寒易热，又所用多犀、珠、龙
、麝，医苟难辨，何以已疾？其难五也。种种隐奥，其难固多。余尝致思于此，又目见庸医
妄施方药而杀之者，十常四五，良可哀也！盖小儿治法，散在诸书，又多出于近世臆说，汗
漫难据，求其要妙，岂易得哉！太医丞钱乙，字仲阳，汶上人。其治小儿，该括古今，又多
自得，著名于时。其法简易精审，如指诸掌。先子治平中登第，调须城尉识之。余五六岁时
，病惊疳癖瘕，屡至危殆，皆仲阳拯之良愈。是时仲阳年尚少，不肯轻传其书。余家所传者
，才十余方耳！大观初，余筮仕汝海，而仲阳老矣。于亲旧间，始得说证数十条。后六年，
又得杂方。盖晚年所得益妙。比于京师，复见别本。然旋着旋传，皆杂乱。初无纪律，互有
得失，因得参校焉。其先后则次之，重复则削之，讹谬则正之，俚语则易之。上卷脉证治法
，中卷记尝所治病，下卷诸方，而书以全。于是古今治小儿之法，不可以加矣。余念博爱者
，仁者之用心，幼幼者圣人之遗训，此惠可不广耶！将传之好事者，使幼者免横夭之苦，老
者无哭子之悲，此余之志也。因以明仲阳之术于无穷焉。
宣教郎大梁阎季忠序
医学作为一门技艺，确实非常艰难，而治疗小儿疾病则尤为困难。从六岁以下的儿童来看，《黄帝内经》中并未记载相关理论，直到出现了《颅囟经》，才用来占测寿命。然而小儿的脉象细微难以察觉，医生在诊脉时，小儿又多因惊恐啼哭，导致无法准确判断，这是第二个难点。既然脉象难以凭借，就必须依靠外在证候。但是小儿骨骼气血尚未形成，形体声音尚未端正，悲伤啼哭或欢喜嬉笑，变化无常，这是第三个难点。通过问诊来了解病情，是医生的高明之处。然而小儿大多不能言语，即使能言也往往不足以采信，这是第四个难点。小儿脏腑柔弱，容易呈现虚证也容易呈现实证，容易偏寒也容易偏热，而且所用药物多涉及犀角、珍珠、龙骨、麝香等贵重药材，如果医生难以辨别药性，如何能治愈疾病？这是第五个难点。种种隐晦深奥之处，难点固然很多。我曾经对此深思，又亲眼见到庸医胡乱施方用药而导致患儿死亡的，十人之中常有四五人，实在令人悲哀！大概小儿的治疗方法，散见于各种书籍中，又多出于近世人的主观臆断，杂乱无章难以依据，想要探求其精妙要领，难道容易得到吗？太医丞钱乙，字仲阳，是汶上县人。他治疗小儿疾病，囊括古今，又多有独到见解，在当时闻名。他的治疗方法简易且精准审慎，如同指掌般清晰。我的父亲在治平年间考中进士，调任须城尉时结识了他。我五六岁时，患有惊风、疳积、癖瘕等病，屡次处于危险境地，都是仲阳救治使我痊愈。那时仲阳年纪尚轻，不肯轻易传授他的书。我家所传承的，才只有十余首方剂罢了！大观初年，我在汝海地区出仕做官，而仲阳已经老了。在亲友旧交之间，才开始得到他论述证候的数十条内容。过了六年，又得到了杂方。大概是晚年所得的内容更加精妙。回到京师后，又见到其他版本。然而往往是刚写完就流传出去，都显得杂乱无章。起初没有条理纪律，互相之间有得有失，因此得以参互校对。按照先后顺序进行编排，删除重复的内容，纠正讹误谬误，将俚俗语言改为雅正表达。上卷记载脉象、证候和治疗方法，中卷记录曾经治疗过的病例，下卷收录各方剂，全书于是完备。这样以来，古今治疗小儿的方法，就没有什么可以超越的了。我想到博爱之心，是仁者的用心；爱护幼小，是圣人的遗训，这种恩惠怎能不广泛传播呢！打算将其传给喜爱此道的人，使幼童免除横死夭折的痛苦，使老人没有丧子的悲伤，这是我的志向。借此阐明仲阳的医术以流传无穷。
宣教郎大梁阎季忠 序
The art of medicine is indeed difficult, and the treatment of pediatric diseases is particularly challenging. For children under the age of six, the *Huangdi Neijing* (Yellow Emperor's Inner Canon) does not record relevant theories; it was only with the emergence of the *Lunxin Jing* (Classic of the Cranium and Fontanelle) that methods for predicting longevity were established. However, infants' pulses are subtle and difficult to perceive. When physicians palpate the pulse, infants often cry out due to fright, making accurate assessment impossible; this constitutes the second difficulty. Since the pulse is unreliable, one must rely on external signs. Yet, infants' bone qi has not yet fully formed, and their physical appearance and voice are not yet standardized. Their expressions of grief, crying, joy, and laughter vary unpredictably; this constitutes the third difficulty. Inquiry through questioning is a mark of a skilled physician. However, most infants cannot speak, and even if they can, their words are not always trustworthy; this constitutes the fourth difficulty. Infants' zang-fu organs are delicate and prone to both deficiency and excess, cold and heat. Furthermore, treatments often involve precious substances such as Rhinoceros Horn (Xijiao), Pearl (Zhenzhu), Dragon Bone (Longgu), and Musk (Shexiang). If physicians cannot accurately distinguish these medicinal properties, how can they cure diseases? This constitutes the fifth difficulty. There are numerous hidden complexities and difficulties. I have pondered this deeply and witnessed common physicians recklessly prescribing medications, resulting in deaths among four or five out of ten cases; this is truly lamentable! Generally, pediatric treatment methods are scattered across various texts, often derived from modern subjective speculations, making them chaotic and unreliable. To seek their essential subtleties is hardly easy! Qian Yi, Grand Medical Attendant, courtesy name Zhongyang, was from Wenshang. His treatment of pediatric diseases encompassed ancient and modern practices and featured many original insights, gaining fame during his time. His methods were simple, precise, and prudent, clear as pointing at one's palm. My father passed the imperial examination during the Zhiping era and was appointed as the Sheriff of Xucheng, where he met him. When I was five or six years old, I suffered from Jing Feng (Convulsions), Gan Ji (Infant Malnutrition), and Pi Jia (Abdominal Masses), repeatedly facing critical danger, all of which were rescued and cured by Zhongyang. At that time, Zhongyang was still young and reluctant to easily transmit his book. The materials transmitted in my family consisted of merely over ten prescriptions! In the early Daguang era, I took office in Ruhai, while Zhongyang had grown old. Among relatives and old friends, I finally obtained dozens of clauses discussing syndromes. Six years later, I acquired miscellaneous prescriptions. It seems the content obtained in his late years was even more exquisite. Upon returning to the capital, I saw other editions. However, manuscripts were circulated immediately after being written, appearing disorganized. Initially lacking systematic order, with mutual gains and losses, I was able to cross-reference them. I arranged them according to chronological sequence, deleted repetitions, corrected errors, and replaced colloquialisms with standard language. The upper volume covers pulse diagnosis, syndromes, and treatment methods; the middle volume records previously treated cases; the lower volume contains various prescriptions, thus completing the book. Consequently, the methods for treating pediatric diseases throughout ancient and modern times could not be improved upon. I reflect that benevolence lies in universal love, the intent of the virtuous; caring for the young is the legacy instruction of sages. Should such kindness not be widely disseminated? I intend to pass this on to enthusiasts, so that the young may be spared the suffering of premature death, and the elderly may be relieved of the sorrow of losing their children. This is my aspiration. Thus, I clarify Zhongyang's medical techniques for endless transmission.
Preface by Yan Jizhong, Official Rank: Xuanyiao Lang, from Daliang