《产经》云∶凡儿断脐法，以铜刀断之，吉（去）脐当令长六，七寸，长则伤肌，短则
伤脏。
凡儿初生，当即举之。迟举则令儿寒中，腹中雷鸣。先浴之，然后断脐裹之，吉。
《千金方》云∶断脐当令长至足夫，短则中寒，令腹中不调，当下利。
又云∶裹脐法∶推治帛布令柔软，方四寸，新绵浓半寸，与布等合之，调其缓急，急令
儿吐 。儿生二十日，乃解视脐。若十日许儿怒啼，似衣中有刺，此或脐燥还刺其腹，当解。
易衣更裹脐时，当闭户下帐，燃火左右，令帐中温暖，儿衣亦令温粉粉之，比谓冬时寒也。
若脐不愈。烧虾蟆令成灰冶末（粉脐中。）
《产经》云∶凡初生儿，其口中舌上有白物如米屑，名为鹅口，及鼻外亦有。此由儿在
胞中之时，其母嗜嚼米，使之然也。此物当时不去之，儿得吞者，化为虫也，宜便去之。治
之方∶
以发缠钗头，沾井花水撩拭之，三四旦，如此便脱去也。犹不去者，可煮栗蒺汁，令浓，
以拭，如上法。若春冬无栗蒺者，可煮栗树皮用如上法，皆良。
一云∶钗头着在者，屠苏水中，勿令儿口中落入吞。（《短剧方》同之。）
《爽师方》云∶小儿鹅口方∶（桑白汁和胡粉涂之。）
《产经》云∶儿初生之时，有口中舌下膜如石榴子，中隔者连其舌下。当时不摘断者，
后喜令儿言语不发，转舌也。治之方∶
可以爪摘断之，微有血出，无害。若血出不止者，可烧发作末，敷之血止，良。（《短剧
方》名之“连舌”。）
《产经》说：凡是给新生儿断脐的方法，要用铜刀来切断，这是吉利的。剪断脐带时，长度应当保留六到七寸；如果留得太长会损伤肌肉，留得太短则会损伤内脏。
凡是新生儿刚出生，应当立即抱起。如果延迟抱起会使寒气侵入婴儿体内，导致腹中肠鸣如雷。先给婴儿洗澡，然后再断脐并包裹好，这是吉利的。
《千金方》说：断脐时应当保留长度直到足部（注：此处原文“足夫”疑为衍文或特定度量，依上下文及前文“六、七寸”逻辑，通常指适中长度，但译文需忠实原文字面或结合语境，此处依原文直译并稍作通顺处理，实际上古籍中常有“令长至足”之说，意指不宜过短），如果太短会导致受寒，引起腹部功能失调，进而出现腹泻。
又说：包裹脐带的法子是：将帛布推揉使其柔软，裁成四见方的大小，铺上新棉，厚度半寸，与布料等宽合在一起，调整松紧度，如果包得太紧会让婴儿呕吐。婴儿出生后二十天，才解开查看脐部。如果十天左右婴儿愤怒啼哭，好像衣服里有刺扎一样，这可能是脐带干燥回缩刺痛了腹部，应当解开。更换衣物重新包裹脐带时，应当关闭门窗放下帐子，在周围点燃灯火，使帐内温暖，婴儿的衣服也要用温粉扑洒，这大概是针对冬季寒冷的情况。
《产经》说：凡是初生的婴儿，其口中舌头上有像米屑一样的白色物质，称为鹅口疮，鼻孔外面也有。这是因为婴儿在母体胞宫之中时，母亲喜欢吃嚼过的米粒，导致婴儿如此。这种白色物质如果不及时去除，婴儿吞食后，会化为虫类，所以应该立刻去除它。治疗的方法是：
用头发缠绕钗头，蘸取井花水（清晨采集的井水）撩起擦拭患处，三四天后，这样就会脱落。如果仍然不去除，可以煮栗蒺（栗树的刺）的汁液，使其浓稠，用来擦拭，方法同上。如果在春冬季节没有栗蒺，可以煮栗树皮的水，用法同上，都很好。
另一种说法是：钗头沾过的地方，不要让它落入婴儿口中被吞下。（《短剧方》与此相同。）
《爽师方》说：治疗小儿鹅口疮的方子：（用桑白皮汁调和胡粉涂抹患处。）
《产经》说：婴儿刚出生时，口中舌头下面有一层膜像石榴籽一样，中间隔开连接着舌头下方。当时不摘除切断的话，后来往往导致婴儿言语不清，舌头转动不灵活。治疗的方法是：
可以用指甲将其摘除切断，微微有点出血，没有关系。如果血流不止，可以将头发烧成粉末，敷在伤口上止血，效果很好。（《短剧方》称此为“连舌”。）
The *Chan Jing* (Classic of Childbirth) states: Regarding the method for cutting the umbilical cord of a newborn, it should be severed with a copper knife, which is auspicious. The length of the remaining umbilical stump should be six to seven cun; if left too long, it will damage the muscles, and if too short, it will damage the internal organs.
When a newborn is first born, they should be lifted immediately. Delaying this may cause cold to invade the interior, resulting in borborygmus (rumbling sounds in the abdomen). It is auspicious to bathe the infant first, then cut the cord and wrap it.
The *Qianjin Fang* (Essential Prescriptions Worth a Thousand Gold) states: The umbilical cord should be left at a length reaching the foot [Note: Textual variant interpretation]; if too short, it leads to cold invasion, causing dysfunction of the abdomen and subsequent diarrhea.
It further states: The method for wrapping the umbilical cord is as follows: Push and rub a piece of silk cloth until soft, cut it into a square four cun on each side, place new cotton wool half an cun thick over it, matching the width of the cloth, and adjust the tightness. If wrapped too tightly, it will cause the infant to vomit. After twenty days from birth, untie and inspect the navel. If around ten days the infant cries angrily as if pricked by something in the clothes, this may be due to the drying umbilical stump retracting and piercing the abdomen; it should be untied. When changing clothes and re-wrapping the navel, close the doors and windows and lower the curtains. Light fires on both sides to keep the curtained area warm. The infant's clothing should also be dusted with warm powder, which is particularly relevant during winter cold.
If the navel does not heal, burn a toad (*Bufo bufo gargarizans*) to ash, grind it into fine powder, and apply it to the navel.
The *Chan Jing* states: In all newborns, there may be white substances resembling rice grains on the tongue and inside the mouth, known as "Goose Mouth" (oral candidiasis/thrush), which may also appear outside the nostrils. This occurs because, while in the womb, the mother chewed rice, transmitting the residue to the fetus. If these substances are not removed promptly and the infant swallows them, they may transform into parasites; therefore, they should be removed immediately. The treatment method is: Wrap the head of a hairpin with hair, dip it well-water (morning-drawn well water), and use it to dab and wipe the affected area. After three or four mornings, the lesions will fall off. If they persist, boil the juice of chestnut burrs (*Tribuli Fructus*) until concentrated, and wipe with it using the same method. If chestnut burrs are unavailable in spring or winter, boiling chestnut bark can be used instead, which is also effective.
Another version states: Ensure that the part of the hairpin touched by the solution does not fall into the infant's mouth and get swallowed. (This agrees with the *Duan Ju Fang*.)
The *Shuang Shi Fang* states: A prescription for pediatric Goose Mouth: (Apply mulberry root bark juice mixed with lead carbonate [Hu Fen] to the affected area.)
The *Chan Jing* states: At birth, some infants have a membrane under the tongue resembling pomegranate seeds, connecting the underside of the tongue. If this is not excised immediately, it may later hinder speech development and restrict tongue movement. The treatment method is:
Use fingernails to excise the membrane. Slight bleeding is harmless. If bleeding does not stop, burn human hair to ash, apply the powder to the wound to stop bleeding, which is effective. (The *Duan Ju Fang* refers to this condition as "Lingual Frenulum Ankylosis" or "Tongue-tie".)