堕胎乃血虚气弱，不能荣养而自堕。譬诸草木，枝枯则果落，藤萎而花坠，胎亦如之。盖气虚则提摄不固，
血虚则灌溉不周，是以胎堕。故善保胎者，必当专补气血，以胎元饮为主，而加减用之。次则芎归补中汤、
泰山磐石散、千金保胎丸、保胎无忧丸，皆夺造化之功，妊娠之至宝也。
胎元饮
（治妇人卫任失守，胎元不固，宜随证加减用之，或间日或二三日服一剂）
人参（随宜） 当归 杜仲（盐水炒断丝） 白芍（各二钱） 熟地（二三钱） 白术（蜜炙，一钱五分）
炙甘草（一钱） 陈皮（七分，无滞不用）
水二钟，煎七分，食远服。
如下元不固而多遗浊者，加黄 （蜜炙）一钱 （但 术气浮能滞胃口，倘胸膈饱闷不快者，须慎用之）。
虚而兼寒多呕者，加炮姜七八分或一钱。虚而兼热者，加黄芩一钱五分，或加生地黄二钱，去杜仲。阴虚小腹
痛，加枸杞二钱。多怒气逆者，加香附（制）七分，或加砂仁七分。若有所触而动血者，加川续断（炒）、阿
胶（炒珠）各一二钱呕吐不止，加半夏（姜汁制、炒）一二钱，生姜三五片。
芎归补中汤（治妊娠气血两虚、半产）
川芎 当归 黄 （蜜炙） 白术（蜜炙） 人参 白芍（炒） 杜仲（盐水炒断丝） 五味子（炒，杵）
阿胶（蛤粉炒珠） 艾叶（各一钱） 甘草（炙，五分）
水二钟，煎七分服。
泰山磐石散（治妇人气血两虚或肥而不实，或瘦而血热，屡有堕胎之患）
人参 黄 （蜜炙） 当归 川续断（炒） 黄芩（各一钱） 川芎 白芍 熟地黄（各八分） 白术
（蜜炙，二钱） 甘草（炙） 砂仁（各五分） 糯米（一撮）
水一钟半，煎七分，食远服。（但觉有孕，三五日常服一剂，永保无堕）。
如有热者倍黄芩，少用砂仁；胃弱者倍砂仁，少加黄
芩。
千金保胎丸（治妊娠腰背疼痛、善于小产） 杜仲（同糯米炒断丝，四两）
川续断（二两，酒洗）
上为末，山药糊丸，每服八九十丸，空心米饮下。
保胎无忧丸
党参（饭上蒸三次） 山药（乳蒸三次） 杜仲（姜汁炒断丝） 白芍（酒炒，各三两） 川芎（炒黑，二两）
续断（酒洗、晒干，五两） 子芩（酒炒） 砂仁（炒、另研细末） 甘草（蜜炙，各一两） 糯米（炒，五两）
为末，蜜丸，每服三钱，白汤下，早晚各一服。
Spontaneous abortion is caused by deficiency of blood and qi, which fails to nourish the fetus, leading to natural miscarriage. It is like plants: when branches wither, fruits fall; when vines decline, flowers drop; the same applies to the fetus. Since qi deficiency leads to weak retention and consolidation, and blood deficiency results in inadequate irrigation and nourishment, the fetus is lost. Therefore, those skilled in preserving pregnancy must specifically tonify qi and blood, using Taiyuan Yin (Fetal Origin Decoction) as the main formula, modified according to symptoms. Next are Xiongui Buzhong Tang (Ligusticum and Angelica Decoction for Tonifying the Middle), Taishan Panshi San (Mount Tai Porphyry Powder), Qianjin Baotai Wan (Thousand-Gold Fetus-Preserving Pill), and Baotai Wuyou Wan (Fetus-Preserving Worries-Free Pill). These formulas can achieve miraculous effects and are the supreme treasures for pregnancy preservation.
Taiyuan Yin (Fetal Origin Decoction)
(Treats women with loss of defense and ren vessel integrity, unstable fetal origin. Modify according to syndrome, or take one dose every other day or every two to three days.)
Renshen (Ginseng Radix et Rhizoma) (dose as appropriate) Danggui (Angelicae Sinensis Radix) Duzhong (Eucommiae Cortex) (stir-fried with salt water until fibers break) Baishao (Paeoniae Radix Alba) (each 2 qian) Shudihuang (Rehmanniae Radix Praeparata) (2-3 qian) Baizhu (Atractylodis Macrocephalae Rhizoma) (honey-fried, 1.5 qian)
Zhigancao (Glycyrrhizae Radix et Rhizoma Praeparata cum Melle) (1 qian) Chenpi (Citri Reticulatae Pericarpium) (0.7 qian, omit if no stagnation)
Add two zhong of water, decoct to seven-tenths, take far after meals.
If lower yuan is insecure with frequent turbid discharge, add Huangqi (Astragali Radix) (honey-fried) 1 qian (but Baizhu has floating qi that may obstruct the stomach appetite; if there is fullness and discomfort in the chest and diaphragm, use with caution).
For deficiency combined with cold causing frequent vomiting, add Paojiang (Zingiberis Rhizoma Praeparatum) 0.7-0.8 fen or 1 fen. For deficiency combined with heat, add Huangqin (Scutellariae Radix) 1.5 qian, or add Shengdihuang (Rehmanniae Radix) 2 qian, remove Duzhong. For yin deficiency with lower abdominal pain, add Gouqi (Lycii Fructus) 2 qian. For frequent anger causing qi reversal, add Xiangfu (Cyperi Rhizoma) (processed) 0.7 fen, or add Sharen (Amomi Fructus) 0.7 fen. If movement due to external contact causes bleeding, add Chuanxuduan (Dipsaci Radix) (fried) and Ejiao (Asini Corii Colla) (fried into beads) each 1-2 qian; for incessant vomiting, add Banxia (Pinelliae Rhizoma) (processed with ginger juice, fried) 1-2 qian, and Shengjiang (Zingiberis Rhizoma Recens) 3-5 slices.
Xiongui Buzhong Tang (Ligusticum and Angelica Decoction for Tonifying the Middle)
(For pregnancy with dual deficiency of qi and blood, or incomplete abortion/miscearriage)
Chuanxiong (Ligustici Chuanxiong Rhizoma) Danggui (Angelicae Sinensis Radix) Huangqi (Astragali Radix) (honey-fried) Baizhu (Atractylodis Macrocephalae Rhizoma) (honey-fried) Renshen (Ginseng Radix et Rhizoma) Baishao (Paeoniae Radix Alba) (fried) Duzhong (Eucommiae Cortex) (stir-fried with salt water until fibers break) Wuweizi (Schisandrae Chinensis Fructus) (fried, pounded)
Ejiao (Asini Corii Colla) (fried with clam powder into beads) Aiye (Artemisiae Argyi Folium) (each 1 qian) Gancao (Glycyrrhizae Radix et Rhizoma) (fried, 0.5 qian)
Add two zhong of water, decoct to seven-tenths, take.
Taishan Panshi San (Mount Tai Porphyry Powder)
(For women with dual deficiency of qi and blood, or obese but not solid, or thin with blood heat, suffering from recurrent spontaneous abortion)
Renshen (Ginseng Radix et Rhizoma) Huangqi (Astragali Radix) (honey-fried) Danggui (Angelicae Sinensis Radix) Chuanxuduan (Dipsaci Radix) (fried) Huangqin (Scutellariae Radix) (each 1 qian) Chuanxiong (Ligustici Chuanxiong Rhizoma) Baishao (Paeoniae Radix Alba) Shudihuang (Rehmanniae Radix Praeparata) (each 0.8 qian) Baizhu (Atractylodis Macrocephalae Rhizoma)
(honey-fried, 2 qian) Gancao (Glycyrrhizae Radix et Rhizoma) (fried) Sharen (Amomi Fructus) (each 0.5 fen) Nuomi (Oryza Sativa Glutinosa) (a pinch)
Add one and a half zhong of water, decoct to seven-tenths, take far after meals. (Once pregnancy is suspected, take one dose every three to five days regularly to ensure permanent prevention of miscarriage).
If there is heat, double Huangqin and reduce Sharen; if the stomach is weak, double Sharen and reduce Huangqin.
Qianjin Baotai Wan (Thousand-Gold Fetus-Preserving Pill)
(For pregnancy with backache and propensity for minor abortion) Duzhong (Eucommiae Cortex) (fried with glutinous rice until fibers break, 4 liang)
Chuanxuduan (Dipsaci Radix) (2 liang, washed with wine)
Grind the above into powder, make pills with yam paste. Take 80-90 pills each time, down with rice water on an empty stomach.
Baotai Wuyou Wan (Fetus-Preserving Worries-Free Pill)
Dangshen (Codonopsis Radix) (steamed three times over rice) Shanyao (Dioscoreae Rhizoma) (steamed in milk three times) Duzhong (Eucommiae Cortex) (fried with ginger juice until fibers break) Baishao (Paeoniae Radix Alba) (wine-fried, each 3 liang) Chuanxiong (Ligustici Chuanxiong Rhizoma) (charred fried, 2 liang)
Xuduan (Dipsaci Radix) (wine-washed, sun-dried, 5 liang) Ziqin (Scutellariae Radix) (wine-fried) Sharen (Amomi Fructus) (fried, separately ground to fine powder) Gancao (Glycyrrhizae Radix et Rhizoma) (honey-fried, each 1 liang) Nuomi (Oryza Sativa Glutinosa) (fried, 5 liang)
Grind into powder, make honey pills. Take 3 qian each time, down with plain boiled water, once in the morning and once in the evening.