答曰。阳施阴化。精盛有余者。则成二胎。脉经云。左右脉俱疾为二子。又云。俱沉实。猥
生二男。俱浮大。猥生二女。且胎之在胞。以气血滋养。若寒温节适。血气强盛。则无伤。
若冷热失宜。气血损弱。则胎痿燥而不育。或过年久而不产。若双胎遇寒。经养不周。故偏
夭伤。候其胎上冷。是胎已死。如鸡乳子。热者为禄。寒者多渴。正谓此也。
干地黄丸。治妊娠气血虚弱。胎气不长。
熟地黄(一两) 芎 白茯苓 人参 当归(各五分) 柴胡(半两) 刺蓟 桑寄生(各半两)
浓朴(一两) 龙骨 阿胶(各三分) 白石脂(三分) 黄 (半两) 甘草(一分炙)
上为细末。蜜和捣二三百杵。丸如桐子大。每服三十丸。清粥饮汤送下。不拘时。
雄黄丸。治妊娠是鬼胎。致腹中黑血数下。腹痛。
雄黄(细研) 累臼(去毛一本鬼臼去心) 莽草 丹砂(细研) 巴豆(去皮心细) 獭肝(炙黄
各半两) 蜈蚣(一枚炙黄) 蜥蜴(一枚炙黄)
上为细末。炼蜜和捣三百杵。丸如桐子大。空腹温酒下二丸。日进二服。服后当下痢。如不
痢加至三丸。初下清水。次下虫如马尾状无数。
病极者下蛇虫。或如虾卵鸡子。或如白膏。或如豆汁。其病悉愈。
白术散。调补冲任。扶养
益血。保和胎脏。
牡蛎(三分) 白术(四分) 芎 (四分) 川椒(去目炒三分)
疗妊娠两儿。腹中一死一活。令死者出。生者安。此方神验万不失一。
蟹爪(一升) 甘草(二尺炙) 阿胶(三两)
上以东流水一斗。先煮二味。取三升。内纳胶令烊。顿服。不能顿服分再服。若人困。拗开
口下。药入即活。煎药宜向东。以茅苇薪煮之。
回答：阳气施放，阴气化生。精气旺盛有余的，就会怀上双胞胎。《脉经》说：左右手脉搏都疾速的，是怀了双胎。又说：如果左右脉都沉实，会生下两个男孩；如果左右脉都浮大，会生下两个女孩。况且胎儿在胞宫中，依靠气血来滋养。如果寒温调节得当，血气强盛，就不会受到伤害。如果冷热失调，气血受损虚弱，就会导致胎儿枯萎干燥而不能发育。有的过了年岁还迟迟不生产。如果是双胎遇到寒气，经络养护不周全，所以其中一个夭折受伤。诊察时如果感觉胎儿上方发冷，说明胎儿已经死亡。这就像鸡孵蛋一样，温度高的能孵化出小鸡（禄指生机/存活），温度低的则容易口渴或死亡，正是说的这个意思。
干地黄丸，治疗妊娠期间气血虚弱，胎气不长进。
熟地黄（一两）、川芎、白茯苓、人参、当归（各五分）、柴胡（半两）、刺蓟、桑寄生（各半两）、浓朴（一两）、龙骨、阿胶（各三分）、白石脂（三分）、黄芪（半两）、甘草（一分，炙）。
以上药物研成细末，用蜂蜜调和并捣击二三百下，制成如梧桐子大小的药丸。每次服用三十丸，用清粥汤送服，不限时间。
雄黄丸，治疗妊娠鬼胎，导致腹中黑血数次排出，腹痛。
雄黄（细研）、鬼臼（去毛，一本作累臼，去心）、莽草、丹砂（细研）、巴豆（去皮心，细制）、獭肝（炙黄）、蜈蚣（一枚，炙黄）、蜥蜴（一枚，炙黄）（各半两）。
以上药物研成细末，炼蜜调和并捣击三百下，制成如梧桐子大小的药丸。空腹时用温酒送服两丸，每日服用两次。服药后应当出现腹泻。如果不腹泻，加至三丸。起初排出清水，随后排出无数像马尾状的虫子。
病情严重的，排出蛇虫，或者像虾卵、鸡蛋，或者像白膏，或者像豆汁。这些病症都会痊愈。
白术散，调理补益冲任二脉，扶养益血，保和胎脏。
牡蛎（三分）、白术（四分）、川芎（四分）、川椒（去目，炒，三分）。
治疗妊娠双胎，腹中一个死亡一个存活的状况，使死者排出，生者平安。此方神验，万无一失。
蟹爪（一升）、甘草（二尺，炙）、阿胶（三两）。
以上用东流水一斗，先煮前两种药材，取三升药液，加入阿胶使其溶化。一次性服完。如果不能一次喝完，分两次服用。如果病人昏迷，撬开嘴灌入，药入即活。煎药宜面向东方，用茅草芦苇做燃料来煮。
Answer: Yang exerts its influence, and Yin transforms it. When essence (Jing) is abundant and surplus, twins may be conceived. The *Mai Jing* (Pulse Classic) states: "If the pulses on both left and right sides are rapid, it indicates twins." It further states: "If both pulses are deep and solid, two male children will be born; if both pulses are floating and large, two female children will be born." Moreover, while the fetus resides in the uterus (Bao), it is nourished by Qi and Blood. If cold and heat are regulated appropriately and Qi and Blood are robust, there will be no harm. However, if there is imbalance in cold and heat, leading to damage and weakness of Qi and Blood, the fetus may wither and dry up, failing to develop. Some pregnancies may extend beyond the expected term without delivery. In cases of twins exposed to cold, where meridian nourishment is insufficient, one twin may suffer premature death or injury. Upon palpation, if the area above the fetus feels cold, it indicates that the fetus has died. This is analogous to a hen incubating eggs: those receiving adequate warmth survive (referred to as 'Lu' or fortune/life), while those lacking warmth often perish or exhibit signs of distress, which is precisely what this refers to.
Gan Di Huang Wan (Rehmannia Pill): Treats pregnancy complicated by deficiency of Qi and Blood, resulting in poor fetal development.
Prepared Rehmannia Root (Shu Di Huang, 1 liang), Ligusticum Rhizome (Chuan Xiong), Poria (Fu Ling), Ginseng Root (Ren Shen), Angelica Sinensis Radix (Dang Gui) [each 5 fen], Bupleurum Root (Chai Hu, 0.5 liang), Cirsium Japonicum Herba (Ci Ji), Taxillus Chinensis Caulis (Sang Ji Sheng) [each 0.5 liang], Magnolia Bark (Nou Pu, 1 liang), Dragon Bone (Long Gu), Donkey-hide Gelatin (E Jiao) [each 3 fen], Alumen Rubrum (Bai Shi Zhi, 3 fen), Astragalus Membranaceus Root (Huang Qi, 0.5 liang), Licorice Root (Gan Cao, 1 fen, honey-fried).
Grind the above ingredients into a fine powder. Mix with honey and pound for 200–300 strokes until uniform. Form pills the size of tung tree seeds. Take 30 pills each time, washed down with clear porridge soup. Time of administration is not restricted.
Xiong Huang Wan (Realgar Pill): Treats "ghost pregnancy" (pseudo-pregnancy or molar pregnancy characterized by abnormal bleeding), causing recurrent discharge of dark blood from the abdomen and abdominal pain.
Realgar (Xiong Huang, finely ground), Podophyllum Emodi Rhizoma et Radix (Gui Jiu, remove hairs and heart; some texts say Lei Jiu), Polygonum Aristolochiifolium Herba (Mang Cao), Cinnabar (Dan Sha, finely ground), Croton Seed (Ba Dou, remove skin and heart, finely processed), Hydrinae Cor (Ta Gan, roasted until yellow), Centipede (Wu Gong, 1 piece, roasted until yellow), Gecko (Xi Yi, 1 piece, roasted until yellow) [each 0.5 liang].
Grind the above ingredients into a fine powder. Mix with refined honey and pound for 300 strokes. Form pills the size of tung tree seeds. Take 2 pills on an empty stomach with warm wine. Administer twice daily. After ingestion, diarrhea should occur. If diarrhea does not occur, increase the dose to 3 pills. Initially, clear water will be discharged, followed by numerous worm-like strands resembling horse tails.
In severe cases, snake-like worms, or substances resembling shrimp eggs, chicken eggs, white paste, or bean juice may be discharged. All such pathological conditions will be cured.
Bai Zhu San (Atractylodes Macrocephala Powder): Regulates and tonifies the Chong and Ren vessels, nourishes and benefits Blood, and harmonizes and protects the uterine organ.
Oyster Shell (Mu Li, 3 fen), Atractylodes Macrocephala Rhizoma (Bai Zhu, 4 fen), Ligusticum Rhizome (Chuan Xiong, 4 fen), Sichuan Pepper (Chuan Jiao, remove eyes, stir-fry, 3 fen).
Treats pregnancy with twins where one has died and the other is alive. This formula facilitates the expulsion of the deceased fetus and ensures the safety of the living one. This prescription is miraculous and infallible.
Crab Claws (Xie Zhua, 1 sheng), Licorice Root (Gan Cao, 2 chi, honey-fried), Donkey-hide Gelatin (E Jiao, 3 liang).
Use 1 dou of flowing water from the east. First decoct the first two ingredients, reduce to 3 sheng of liquid. Add the gelatin and melt it completely. Consume in one dose. If unable to consume at once, divide into two doses. If the patient is unconscious, pry open the mouth and administer the medicine; upon entry, life will be restored. Decoction should be prepared facing east, using straw and reed wood as fuel.