凡孕妇脾胃旺。气血充足。则胎安产正。子亦多寿。何用安胎。若气血衰。脾胃弱。而饮食
少。则虚症百出。或孕成数坠。而子不寿。是必资药力以助母胎。并寿子也。夫精血会凝而
成孕。精气蒸胃而遂呕。血少肝虚。加爱醋物。胃气受伤。厌阻饮食。若人素弱。呕阻。橘
半量加。禀孕而然。竹沥。姜汁。胎痛宜缓。少加带壳砂仁。胎漏宜凉。须用地黄生熟。至
若倾扑动胎下血。胶艾宜加。怒气胎遂上冲。木香为使。小便短涩成淋沥。安荣不应用升提。若还
滞血流于脬。逍遥。栀子宜加入。子肿面目虚浮。而肢体水气。全生白术堪医。子烦心惊胆
怯。而时见闷烦。竹叶安胎可疗。天仙藤治子气。脚缝水出。人虚多用术参。羚羊角理子痫
。项强筋搐。应用人参竹沥。脾气虚而胎压尿胞。则脐腹痛而小便淋闭。安胎饮虽宜。法当
升提探吐。脾气弱而转运淹迟。则饮食停而胃家胀呕。安胎饮力缓加参。平胃调和。又若胸
满腹胀。便闭遍身浮肿。鲤鱼汤治胎水攸宜。恐脾胃气虚。四君。五皮为佐。胎气上攻。心
腹胀痛。紫苏饮疗子悬甚当。若食少晡热。逍遥加味相。兼柴前梅连为丸。骨蒸劳热可退。
当归六黄作引。盗汗晡热堪除。孕成屡堕。因母血弱。不能分荫其胎。娩子无气。由母气虚
。仅可滋荣于己。老夫得其少妇。须寡欲以候经期。壮阳若遇衰阴。必宜频药以全胎力。参术
条芩。为安胎之圣药。芎归怀熟。实补血之良规。佐以苏叶。陈皮。可为常服之方。孕成六
月之前。其胎尚未转运。茯苓性降。不宜多用。黄 肥胎。岂可常加。香附虽胎喘宜加。久
服虚人有害。砂仁可止呕定痛。多用动血行胎。历考丹溪之论。不过数言。安胎之方。止于
三四。若能加减治病。可以十全八九矣。
大凡孕妇如果脾胃功能旺盛，气血充足，那么胎儿安稳，分娩顺利，孩子也会多寿。哪里还需要安胎呢？如果气血衰弱，脾胃虚弱，饮食减少，就会虚症百出，或者怀孕多次流产，孩子也不长寿。这必须借助药力来辅助母体和胎儿，并让孩子长寿。
精血汇聚凝结而成孕，精气蒸腾胃部导致呕吐。血少肝虚，喜爱酸味食物，胃气受伤，厌恶且阻滞饮食。如果人素来虚弱，呕吐阻滞，橘皮、半夏的用量要增加，这是禀受于怀孕的缘故。竹沥、姜汁，胎痛适宜缓和，少量加入带壳砂仁；胎漏（孕期阴道出血）适宜清凉，必须使用生地黄和熟地黄。至于跌倒扑动胎气导致下血，胶艾汤适宜加入；怒气导致胎气上冲，木香作为引经药；小便短涩形成淋沥，安荣方不应用升提法；如果还有滞血流入膀胱，逍遥散、栀子适宜加入。
子肿（妊娠肿胀），面目虚浮，肢体有水气，全生白术可以医治；子烦（妊娠心烦），心惊胆怯，时常感到闷烦，竹叶安胎汤可以治疗；天仙藤治疗子气（妊娠脚肿），脚缝出水，人体虚弱多用白术、人参；羚羊角调理子痫（妊娠抽搐），项强筋脉抽搐，应用人参、竹沥。脾气虚而胎压迫尿胞，则脐腹痛且小便淋闭，安胎饮虽然适宜，治法应当升提探吐；脾气弱而转运迟缓，则饮食停滞而胃部胀呕，安胎饮力量缓弱需加人参，平胃散调和。
又若胸满腹胀，便秘遍身浮肿，鲤鱼汤治疗胎水最为适宜；恐怕是脾胃气虚，四君子汤、五皮饮作为佐助。胎气上攻，心腹胀痛，紫苏饮治疗子悬（妊娠腹中疼痛）非常恰当。如果食少午后发热，逍遥散加味相宜，兼用柴胡、前胡、梅连（黄连等）制成丸剂，骨蒸劳热可以退去，当归六黄汤作为引经药，盗汗午后发热可以消除。
怀孕屡次流产，因为母体血弱，不能分荫滋养胎儿；娩子无气，由母体气虚，仅能滋润自己。老夫娶得少妇，须寡欲以等待经期；壮阳若遇到衰阴，必宜频繁用药以保全胎力。人参、白术、条芩，是安胎的圣药；川芎、当归、怀熟地，确实是补血的良规。佐以苏叶、陈皮，可以作为常服的方子。怀孕六月之前，其胎尚未转运，茯苓性降，不宜多用；黄芪肥胎，岂可常加？香附虽胎喘适宜加入，久服对虚人有害。砂仁可以止呕定痛，多用会动血行胎。
Generally, if a pregnant woman's Spleen and Stomach functions are robust and her Qi and Blood are sufficient, the fetus will be secure, delivery will proceed normally, and the child will likely live long. In such cases, there is no need for fetal stabilization measures. However, if Qi and Blood are deficient and the Spleen and Stomach are weak, leading to reduced food intake, various deficiency syndromes may arise. This can result in recurrent miscarriages and a shorter lifespan for the child. In these instances, medicinal support is necessary to assist both the mother and the fetus, ensuring the child's longevity.
Pregnancy is formed by the convergence and condensation of Essence and Blood. The steaming of Essence into the Stomach causes vomiting. When Blood is scant and the Liver is deficient, there may be an increased craving for sour foods. If the Stomach Qi is injured, it leads to aversion and obstruction of food intake. For individuals who are constitutionally weak with vomiting and obstruction, the dosages of Chenpi (Citri Reticulatae Pericarpium) and Banxia (Pinelliae Rhizoma) should be increased; this is inherent to the state of pregnancy. Zhuli (Bambusae Caulis in Taenia Juice) and Jiangzhi (Zingiberis Recensis Juice) are used. For fetal pain requiring gentle relief, slightly add Sharen (Amomi Fructus) with the shell. For fetal bleeding (Tainlou), cooling agents are appropriate, specifically using Shengdihuang (Rehmanniae Radix) and Shudihuang (Rehmanniae Radix Preparata).
Regarding trauma from falls that disturbs the fetus causing bleeding, Jiao'ai Tang (Colla Corii Asini et Artemisia Decoction) is suitable. Anger causing fetal Qi to rush upward requires Muxiang (Aucklandiae Radix) as a guiding herb. Short and difficult urination resembling strangury indicates that Anrong Fang should not employ lifting methods. If stagnant blood flows into the bladder, Xiaoyao San (Free and Easy Wanderer Powder) and Zhizi (Gardeniae Fructus) are appropriate additions.
For Zizhong (pregnancy edema) with puffy face and limbs due to water retention, Quansheng Baizhu (All-Generating Atractylodes Macrocephala) is effective. For Zifan (pregnancy irritability) characterized by heart palpitations, fearfulness, and occasional oppression, Zhuye AnTai Tang (Bamboo Leaf Fetal Stabilization Decoction) can treat it. Tianxianteng (Stephaniae Tetrandrae Herba) treats Ziqi (pregnancy swelling of feet); for leakage of fluid between toes in deficient persons, Baizhu (Atractylodis Macrocephalae Rhizoma) and Renshen (Ginseng Radix et Rhizoma) are commonly used. Lingyangjiao (Saigae Tataricae Cornu) regulates ZiXian (pregnancy eclampsia); for neck stiffness and muscle spasms, Renshen and Zhuli are applied.
If Spleen Qi deficiency causes the fetus to press on the bladder, resulting in umbilical abdominal pain and strangury/retention, Antai Yin (Fetal Stabilization Drink) is suitable, but the method should involve lifting and inducing vomiting. If Spleen Qi weakness causes slow transportation, leading to food stagnation and gastric distension/vomiting, the mild effect of Antai Yin requires adding Renshen, harmonized with Pingwei San (Stomach-Ping Powder).
Furthermore, for chest fullness, abdominal distension, constipation, and generalized edema, Liyu Tang (Carp Decoction) is most suitable for treating Taishui (fetal hydrops/water retention). Suspecting Spleen and Stomach Qi deficiency, Sizijun Zi Tang (Four Gentlemen Decoction) and Wupi Yin (Five Peel Decoction) serve as adjuvants. For fetal Qi attacking upward causing heart and abdominal distension and pain, Zisu Yin (Perilla Leaf Drink) is highly appropriate for treating Zixuan (pregnancy abdominal pain due to constrained fetal Qi).
If there is poor appetite and afternoon fever, Xiaoyao San with modifications is suitable; combined with Chaihu (Bupleuri Radix), Qianhu (Peucedani Radix), and Meilian (Coptidis Rhizoma etc.) made into pills, it can dissipate bone-steaming consumption fever. Danggui Liu Huang Wan (Angelica Six-Huang Pill) serves as a guide to eliminate night sweats and afternoon fever.
Recurrent miscarriages occur because maternal Blood is weak and cannot nourish the fetus sufficiently. Lack of Qi in the newborn stems from maternal Qi deficiency, where the mother can only barely nourish herself. When an older man marries a young woman, he must practice sexual restraint to await the menstrual cycle. If vigorous Yang encounters declining Yin, frequent medication is necessary to preserve fetal strength. Renshen, Baizhu, and Tiaoqin (Scutellariae Radix) are sacred herbs for fetal stabilization. Xiong (Chuanxiong Rhizoma), Guizhi (Cinnamomi Ramulus - *Note: Text says Xiong Gui Huai Shu, usually implies Dang Gui*), and Huaishu (Rehmanniae Radix Preparata from Huaiqing) are excellent standards for tonifying Blood. Adjuvanted with Zisuye (Perillae Folium) and Chenpi, they form a formula for regular use.
Before the sixth month of pregnancy, the fetus has not yet fully transported; therefore, Fuling (Poria) with its descending nature should not be used excessively. Huangqi (Astragali Radix) for fattening the fetus should not be added regularly. Xiangfu (Cyperi Rhizoma) may be added for fetal panting, but long-term use harms deficient persons. Sharen can stop vomiting and relieve pain, but excessive use moves Blood and disturbs the fetus.
Reviewing Danxi's theories, they amount to only a few words. Formulas for fetal stabilization are limited to three or four. If one can modify them to treat diseases, success rates can reach eighty or ninety percent.