凡男子八八六十四而天真竭，过数而能生子者，禀原异于常也。女子七七四十九而天癸
断，
过期而能有孕者，冲脉旺而血气充也。然衰年欲昌嗣续，各有道焉。衰翁必须异床息火，
绝无
暗满流泄，药味助神真固，以候经期种子，斯干元资始之本浓也。弱妇成孕，必须月服固胎
饮二十余剂，以培衰弱天真，斯坤元资生之源充也。补弱夫弱妇不足，前先天二方及补汤丸
，经验极多。
补阳宿凤丸（大补年老人）
北五味 白术 黄 茯苓 炙川芎 甘草 白芍 巴戟 破故纸 山萸肉 天冬 苁
蓉
川牛膝 广皮 怀山药 黄柏 知母 杜仲 虎骨（以上十九味，各一两） 怀生地（四两）
熟地（四两） 麦冬（四两） 人参（四两） 当归（三两） 甘枸杞（三两）
用十年陈线鸡一只，蒸熟去皮油，取肉骨焙燥，合诸药炼蜜丸。（气血虚服之甚有益）
妇人受胎一月，形如露珠，乃太极动而生阳，天一生水，谓之胫足厥阴，肝脉主之
。经水即
闭，饮食稍异。二月如桃花瓣，乃太极静而生阳，地二生火，谓之 足厥阴，胆脉主之。若
吐逆减食，名曰恶阻，有孕明矣。或偏嗜一物，乃一脏之虚，如爱酸物乃肝经，只能养胎而
虚也。三月如清鼻涕，先成鼻与雌雄二器，乃分男女，手少阴相火所主，胎最易动。四月始
受水精，以成血脉，形象具，手足顺成，手少阳脉所至。五月始受火精，筋骨四肢已成，毛
发始生，足太阴脉所主。六月始受金精，以成筋，口耳皆成，足阳明脉所主。七月始受木精
以成骨，游其魂，能动左手，手太阴脉所主。八月始受土精以成，皮肤九窍皆成，游其魄，
能动右手，手阳明脉所主。九月始受石精，百节毕备，三转其身，足少阴脉所主。十月神气
备足乃生，足太阳脉所主。惟手少阴太阳所主者，其主之官无为而已。堕胎须防三、五、七
月，宜服清热凉血安胎之药。女子阴类也，以血为主，上应太阴，下应海潮，一月一行，故
谓之月水、月信、月经。经者，常也；天癸，天一生水也。或先或后，或通或塞，皆病也。
复有变常，而古人未言及者，不可不知。有行期只吐血衄血；或眼目出血者，是谓倒经。有
三月一行者，是谓季经。有一年一行者，是谓避年。有一生不行而受胎者，是谓暗经。有受
胎之后，月月行经而生子者，是谓盛胎。或受胎每月血大下而胎不陨者，是谓漏胎。女子二
七天癸至，七七天癸绝，其常也。有女子十二三而生者，其变也，医者亦宜留心也。
凡是男子到了八八六十四岁，天癸（指促进人体生长、发育和生殖的物质）枯竭，过了这个年龄还能生育的，是先天禀赋异于常人的。女子到了七七四十九岁，天癸断绝，过了这个年龄还能怀孕的，是因为冲脉旺盛且气血充盈。然而，年老想要繁衍后代，各有其道。年老男子必须分床而睡以清心寡欲，绝对避免暗中遗精泄气，通过药物扶助神真、巩固根本，以等待妻子经期受孕，这样先天元阳资始的根本才会浓厚。年轻体弱的女子受孕，必须每月服用固胎饮二十多剂，以培补衰弱之天真元气，这样坤元资生的源泉才会充盛。仅靠补益虚弱的丈夫和妻子还不够，前述的先天二方及补益汤丸，经验验证非常多。
补阳宿凤丸（大补老年人）
北五味子、白术、黄柏、茯苓、炙川芎、甘草、白芍、巴戟天、破故纸（补骨脂）、山萸肉、天冬、肉苁蓉、川牛膝、广皮（陈皮）、怀山药、黄柏、知母、杜仲、虎骨（以上十九味药，各一两）、怀生地（四两）、熟地（四两）、麦冬（四两）、人参（四两）、当归（三两）、甘枸杞（三两）。
用十年陈年的线鸡一只，蒸熟去皮去油，取肉和骨头焙干，与上述诸药混合，炼蜜为丸。（气血虚弱者服用非常有益）
妇人受孕一个月，胎儿形状如露珠，这是太极运动而生出阳气，天一生水，称为胫足厥阴，由肝脉主管。此时月经停止，饮食口味稍有改变。两个月时像桃花瓣，这是太极静止而生出阳气，地二生火，称为足厥阴，由胆脉主管。如果出现呕吐、食欲减退，名为恶阻，说明已经怀孕。如果偏嗜某种食物，是一脏虚弱所致，比如爱吃酸物是肝经虚弱，只能养胎而不能滋养自身。三个月时像清鼻涕，先形成鼻子和男女生殖器，由此区分男女，由手少阴相火主管，此时胎气最容易动。四个月开始接受水之精华，形成血脉，形象具备，手足顺次长成，由手少阳脉主管。五个月开始接受火之精华，筋骨四肢已成形，毛发开始生长，由足太阴脉主管。六个月开始接受金之精华，形成筋，口耳都形成，由足阳明脉主管。七个月开始接受木之精华，形成骨骼，魂游动，能活动左手，由手太阴脉主管。八个月开始接受土之精华，皮肤九窍都形成，魄游动，能活动右手，由手阳明脉主管。九个月开始接受石之精华，百节完备，身体转动三次，由足少阴脉主管。十个月神气完备充足便出生，由足太阳脉主管。只有手少阴和手太阳脉所主的脏腑，其主宰功能是无为而治的。堕胎需要防备在第三、第五、第七个月，适宜服用清热凉血安胎的药物。女子属阴类，以血为主，上应太阴，下应海潮，每月一次，所以称为月水、月信、月经。经，就是常道；天癸，是天一生水的体现。或者月经提前或推后，或者通畅或者闭塞，都是病态。还有违背常规而古人未提及的情况，不可不知道。有行经期间只吐血或鼻出血的；或者眼目出血的，这叫做倒经。有三个月来一次月经的，这叫做季经。有一年来一次月经的，这叫做避年。有一辈子不来月经却能受孕的，这叫做暗经。有受孕之后，每个月还来月经并生下孩子的，这叫做盛胎。或者受孕后每月大量出血但胎儿不流产的，这叫做漏胎。女子到二七天癸来临，七七天癸绝止，这是正常情况。有女子十二三岁就生育的，这是变异情况，医生也应当留心。
In general, when men reach the age of 64 (eight times eight), their Tian Gui (substances promoting growth, development, and reproduction) is exhausted. Those who can still father children after this age possess a congenital endowment different from the norm. When women reach the age of 49 (seven times seven), their Tian Gui ceases. Those who can still conceive after this age do so because their Chong Mai (Penetrating Vessel) is vigorous and their Qi and Blood are abundant. However, for the elderly to propagate their lineage, there are specific methods. An elderly man must sleep in separate beds to maintain sexual abstinence, absolutely avoiding nocturnal emissions or secret leakage. He should use herbs to support Shen Zhen (Spiritual Truth/Essence) and consolidate the root, waiting for his wife's menstrual period to conceive. This ensures that the foundation of Xian Tian Yuan Yang (Pre-Heaven Primordial Yang), which initiates creation, becomes thick and robust. For a young but weak woman to conceive, she must take Gu Tai Yin (Fetus-Securing Decoction) for more than twenty doses each month to nourish her weakened Tian Zhen (True Essence). This ensures that the source of Kun Yuan (Earthly Origin) generating life becomes sufficient. Merely tonifying a weak husband and wife is insufficient; the aforementioned Two Formulas of Pre-Heaven and various tonic pills have proven highly effective through experience.
Bu Yang Su Feng Wan (Phoenix Pill Tonifying Yang, greatly tonifying the elderly):
Bei Wu Wei Zi (Schisandrae Fructus), Bai Zhu (Atractylodis Macrocephalae Rhizoma), Huang Bo (Phellodendri Cortex), Fu Ling (Poria), Zhi Chuan Xiong (Ligustici Chuanxiong Rhizoma processed with honey), Gan Cao (Glycyrrhizae Radix et Rhizoma), Bai Shao (Paeoniae Radix Alba), Ba Ji Tian (Morindae Officinalis Radix), Po Gu Zhi (Psoraleae Fructus), Shan Yu Rou (Corni Fructus), Tian Dong (Asparagi Radix), Rong Zhong (Cynomorii Herba), Chuan Niu Xi (Cyathulae Radix), Guang Pi (Citri Reticulatae Pericarpium), Huai Shan Yao (Dioscoreae Hypoglaucae Rhizoma), Huang Bo (Phellodendri Cortex), Zhi Mu (Anemarrhenae Rhizoma), Du Zhong (Eucommiae Cortex), Hu Gu (Ossum Tigris - *Note: Use legal substitutes due to conservation laws*), each one liang (above nineteen ingredients); Huai Sheng Di (Rehmanniae Radix Preparata) four liang, Shu Di (Rehmanniae Radix Preparata) four liang, Mai Dong (Ophiopogonis Radix) four liang, Ren Shen (Ginseng Radix et Rhizoma) four liang, Dang Gui (Angelicae Sinensis Radix) three liang, Gan Gou Qi (Lycii Fructus) three liang.
Steam one ten-year-old line hen until cooked, remove skin and oil, dry the meat and bones by baking, then combine with the above herbs and refine with honey to make pills. (Highly beneficial for those with Qi and Blood deficiency.)
When a woman conceives in the first month, the fetus resembles a dewdrop. This represents Tai Ji moving to generate Yang, where Heaven generates Water, termed "Jing Zu Jue Yin" (Tibia-Foot Jueyin), governed by the Liver Mai (Vessel). The menstrual flow stops, and dietary preferences change slightly. In the second month, it resembles peach petals. This represents Tai Ji stillness generating Yang, where Earth generates Fire, termed "Zu Jue Yin" (Foot Jueyin), governed by the Gallbladder Mai. If nausea and vomiting occur with reduced appetite, it is named E Zu (Morning Sickness/Obstruction), clearly indicating pregnancy. Craving specific foods indicates deficiency in a specific Zang organ; for example, craving sour foods indicates Liver Jing deficiency, which can only nourish the fetus but not the mother herself. In the third month, it resembles clear mucus. The nose and genital organs form first, distinguishing male and female. It is governed by Hand Shao Yin Xiang Huo (Ministerial Fire), and the fetal Qi is most prone to movement. In the fourth month, it begins to receive the essence of Water to form blood vessels. The physical form is complete, hands and feet develop sequentially, governed by the Hand Shao Yang Mai. In the fifth month, it begins to receive the essence of Fire. Bones, sinews, and limbs are formed, hair begins to grow, governed by the Foot Tai Yin Mai. In the sixth month, it receives the essence of Metal to form sinews. The mouth and ears are formed, governed by the Foot Yang Ming Mai. In the seventh month, it receives the essence of Wood to form bones. The Hun (Ethereal Soul) wanders, and the left hand moves, governed by the Hand Tai Yin Mai. In the eighth month, it receives the essence of Earth. Skin and the nine orifices are formed, the Po (Corporeal Soul) wanders, and the right hand moves, governed by the Hand Yang Ming Mai. In the ninth month, it receives the essence of Stone. All joints are complete, the body turns three times, governed by the Foot Shao Yin Mai. In the tenth month, Shen Qi (Spiritual Energy) is fully prepared, leading to birth, governed by the Foot Tai Yang Mai. Only the organs governed by Hand Shao Yin and Hand Tai Yang function through non-action (Wu Wei). Miscarriage must be guarded against in the third, fifth, and seventh months; it is appropriate to take herbs that clear heat, cool blood, and secure the fetus. Women belong to the Yin category and prioritize Blood. They correspond to Tai Yin above and sea tides below, menstruating once a month; hence they are called Yue Shui (Monthly Water), Yue Xin (Monthly Trust), or Jing Yue (Menstruation). "Jing" means regularity; "Tian Gui" refers to the water generated by Heaven One. Irregularities such as early or late onset, or obstruction or patency, are pathological conditions. There are also variations contrary to norms that ancient texts did not mention, which must be known. Some experience hematemesis or epistaxis during their period; others have bleeding from the eyes. This is called Dao Jing (Reverse Menstruation). Some menstruate once every three months, called Ji Jing (Quarterly Menstruation). Some once a year, called Bi Nian (Avoiding Year). Some never menstruate throughout their lives yet can conceive, called An Jing (Hidden Menstruation). Some continue to menstruate monthly after conception and give birth, called Sheng Tai (Abundant Fetus). Some experience heavy bleeding monthly after conception without miscarriage, called Lou Tai (Leaking Fetus). It is normal for Tian Gui to arrive at age 14 (two sevens) and cease at age 49 (seven sevens). However, some women give birth at ages 12 or 13, which is a variation. Physicians should pay attention to these cases.