（附论）
天地者形之大也。阴阳者。气之大也。惟形与气。相资而立。未始偏废。男女媾精。万
物化生。天地阴阳之形气寓焉。语七八之数。七、少阳也。八、少阴也。相感而流通。故女
子二七天癸至。男子二八天癸至。则以阴阳交合而兆始故也。语九十之数。九、老阳也。十、
老阴也。相包而赋形。故阴穷于十。男能围之。阳穷于九。女能方之。则以阴阳相生而成终
故也。元气孕毓。皆始于子。自子推之。男左旋。积岁三十而至巳。女右旋。积岁二十而至
巳。巳为正阳。阴实从之。自巳怀壬。男左旋。十月而生于寅。女右旋。十月而生于申。申
为三阴。寅为三阳。而生育之时着矣。其禀赋也。体有刚柔。脉有强弱。气有多寡。血有盛
衰。皆一定而不易也。以至分野异域。则所产有多寡之宜。吉事有祥。则所梦各应其类。是
故荆杨薄壤多女。雍冀浓壤多男。熊罴为男子之祥。蛇虺为女子之祥。是皆理之可推也。胎
化之法。有所谓转女为男者。亦皆理之自然。如食牡鸡。取阳精之全于天产者。带雄黄。取
阳精之全于地产者。操弓矢。藉斧斤。取刚物之见于人事者。气类潜通。造化密移。必于三
月兆形之先。盖方仪则未具。阳可以胜阴。变女为男。理固然也。
又云。张华博物志曰。妊娠必谨所感。感于善者。生子必善。感于恶者。生子必恶。故
不欲令见恶物、异禽、毒兽。切忌驴马、犬兔、龟鳖、鹅鸭、无鳞鱼、粘腻难消化物。蕈、
姜、乳饼等属。用酱和藿食。损胎难产。惟务简静。动止有节。三个月之后。听诵经典、诗
书、讽咏。静处养心。目不视恶色。耳不听恶声。如此生子。必贤明端正。忠孝寿考也。
方
丹参丸（出千金方）治妇人始觉有娠。养胎。并转女为男。
丹参 续断 芍药 白胶 白术 柏子仁 甘草（各二两） 人参 芎 干姜（各三
两） 吴茱萸 橘皮 当归（各十八铢） 白芷 冠缨（烧灰各一两） 干地黄（一两半） 芜
荑（十八铢） 犬卵（一具干） 东门上雄鸡头（一枚） 上为末。蜜和丸如梧桐子大。酒
服十丸。日再。稍
又方（出千金方）
用原蚕屎一枚。以井花水服之。日三服。
转女为男者。盖阳施阴化。所以有娠。遇三阴所会。多生女子。但怀娠二月。名曰始膏。
精气成于胞里。至于三月。谓之始胎。血脉不流。象形而变。是时男女未定。故令于未满三
月间。服药方术转令生男也。（出千金方）以斧置妊娠床下。系刃向下。勿令人知。恐不信
者。
令待鸡抱卵时。根据此置于窝下。一窝尽出雄鸡。神效如此。虽未试。亦不可不知者。一法。
觉三月。尿雄鸡浴处。
凡受胎三月。逐物变化。故古人立胎教。能令生子良善、长寿、忠孝、仁义、聪明、无
疾。盖须十月之内。常见好景象。毋近邪僻。真良教也。如有触忤伤胎。治各有法。
又自初觉有娠。（出千金方）
取弓弩弦一枚。缚妇人腰下。满百日去之。一法绛囊盛带妇人左臂。
紫宫玉女秘法 妊娠三月以前。
取雄鸡尾尖上长毛三茎。潜安妇人卧席下。勿令知之。验。
又法
取夫发及手足甲。潜安卧席下。勿令知之。
妊娠才满三月。要男法（出千金方）
以雄黄半两。衣中带之。要女者以雌黄带之。一方绛囊盛带之。
(Attached Discussion)
Heaven and Earth are the largest forms. Yin and Yang are the greatest energies. Only form and energy rely on each other to establish existence, never being neglected or biased. When male and female unite their essence, all things are transformed and born. The form and energy of Heaven and Yin and Yang are embedded therein. Regarding the numbers seven and eight: seven belongs to Shaoyang (Lesser Yang), and eight belongs to Shaoyin (Lesser Yin); they interact and flow. Therefore, when a girl is fourteen years old, Tian Gui (menstruation) arrives; when a boy is sixteen years old, Tian Gui arrives. This is because the beginning of conception arises from the union of Yin and Yang. Regarding the numbers nine and ten: nine belongs to Laoyang (Old Yang), and ten belongs to Laoyin (Old Yin); they encompass and give form. Thus, Yin reaches its limit at ten, which men can encircle; Yang reaches its limit at nine, which women can square. This is because the end is achieved through the mutual generation of Yin and Yang. The primordial Qi that nurtures the fetus begins at Zi (the first earthly branch). Counting from Zi, men rotate leftward, accumulating thirty years to reach Si; women rotate rightward, accumulating twenty years to reach Si. Si represents Zhengyang (True Yang), and Yin actually follows it. From Si conceiving Ren (Ren Meridian Qi), men rotate leftward and are born in Yin after ten months; women rotate rightward and are born in Shen after ten months. Shen represents Sanyin (Three Yin), and Yin represents Sanyang (Three Yang), thus revealing the timing of fertility. Regarding endowment, bodies have rigidity and softness, pulses have strength and weakness, Qi has abundance and scarcity, and Blood has flourishing and decline; these are fixed and unchangeable. As for different regions, the appropriate number of offspring varies. Auspicious events have omens, and dreams correspond to their respective categories. Therefore, Jing and Yang provinces with thin soil produce more daughters, while Yong and Ji provinces with rich soil produce more sons. Bears and tigers are auspicious omens for bearing sons, while snakes and vipers are auspicious omens for bearing daughters. These are principles that can be deduced. In the methods of fetal transformation, there is what is called "turning a female fetus into a male," which is also a natural principle. For example, eating rooster meat takes the complete yang essence from animal products; wearing Realgar takes the complete yang essence from mineral products; holding bows and arrows, relying on axes and hatchets, takes the visible rigid properties from human affairs. Energies of similar categories secretly connect, and creation secretly shifts. It must be done before the fetus takes shape at three months. At this time, the embryo's form is not yet established, so Yang can overcome Yin, turning a female into a male; this is indeed the principle.
It is also said: Zhang Hua stated in *Bowuzhi* (Records of Things Known): During pregnancy, one must be cautious about external influences. Influenced by good things, the child will surely be good; influenced by bad things, the child will surely be bad. Therefore, pregnant women should not see evil objects, strange birds, or poisonous beasts. One must strictly avoid donkeys, horses, dogs, rabbits, turtles, turtles, geese, ducks, scaleless fish, and sticky, hard-to-digest foods such as mushrooms, ginger, and milk cakes. If sauce mixed with huoxiang leaves is eaten, it damages the fetus and causes difficult labor. One should strive for simplicity and tranquility, regulating movement and rest. After three months, listen to classics and poetry, chant verses, cultivate the mind in quietude, do not look at ugly sights, and do not listen to ugly sounds. A child born under such conditions will surely be virtuous, upright, loyal, filial, and long-lived.
Prescriptions
Danshen Wan (from *Qianjin Fang*) treats women who just feel pregnant, nourishes the fetus, and turns a female fetus into a male.
Danshen Radix, Xuduan Dipsaci Herba, Shaoyao Paeoniae Radix, Baijiao Colla Asini (Ejiao), Baizhu Atractylodis Rhizoma, Baiziren Semen Platycladi, Gancao Glycyrrhizae Radix et Rhizoma (each 2 liang); Renshen Ginseng Radix, Xiong Chuanxiong Rhizoma, Jianggan Zingiberis Rhizoma Recens (each 3 liang); Wuzhuyu Evodiae Fructus, Juqi Citri Reticulatae Pericarpium, Danggui Angelicae Sinensis Radix (each 18 zhu); Baizhi Angelicae Dahuricae Radix, Guanying Crown Tassel (burned to ash, each 1 liang); Dihuang Rehmanniae Radix Preparata (1.5 liang); Wuyi Meliae Fructus (18 zhu); Quan Canine Testis (one, dried); Dongmen Shang Xiongjitou Rooster Head from East Gate (one). Grind the above into powder, mix with honey, and make pills the size of wutong seeds. Take ten pills with wine, twice a day.
Another Prescription (from *Qianjin Fang*)
Use one piece of Yuancanshi (excrement of the original silkworm), taken with Jinghuashui (well water drawn at dawn), three times a day.
The so-called "turning a female fetus into a male" occurs because Yang acts and Yin transforms, leading to pregnancy. When meeting the convergence of Three Yin, girls are often born. However, at two months of pregnancy, it is called "Shigao" (Beginning Paste), where essence and qi form in the uterus. By three months, it is called "Shitai" (Beginning Fetus), where blood vessels cease flowing, and changes occur according to form. At this time, the gender is not yet determined, hence medication and techniques are applied before the third month to ensure the birth of a boy. (From *Qianjin Fang*) Place an axe under the pregnant woman's bed, with the blade facing down, without letting others know. For those who doubt, when hens sit on eggs, place it under the nest according to this method, and the entire brood will hatch as roosters. Such is the divine efficacy. Although not personally tested, it is something one must know. Another method: Upon feeling three months of pregnancy, urinate at the place where a rooster bathes.
Generally, during the first three months of conception, the fetus changes according to external objects. Therefore, ancients established prenatal education to ensure children are kind, long-lived, loyal, filial, benevolent, righteous, intelligent, and disease-free. Within the ten months, one must frequently see beautiful scenes and avoid evil influences; this is truly good education. If there is trauma damaging the fetus, treatment varies by case.
Another method, since initially feeling pregnant (from *Qianjin Fang*):
Take one bowstring, tie it below the woman's waist, remove it after one hundred days. Another method: Put a belt in a crimson bag and tie it to the woman's left arm.
Zigong Yünu Secret Method Before three months of pregnancy:
Take three long feathers from the tip of a rooster's tail, secretly place them under the woman's sleeping mat, without her knowing. Effective.
Another method:
Take the husband's hair and fingernails/toenails, secretly place them under the sleeping mat, without her knowing.
Method to Request a Boy Just After Three Months of Pregnancy (from *Qianjin Fang*):
Carry half a liang of Xionghuang Realgar. To request a girl, carry Cihuang Orpiment. Another method: Carry it in a crimson bag.