凡产后诸病，古方多用四物汤加减，何也？以方中有芎、归之辛温，佐以地、芍之寒凉，温寒适中，
可谓无虞矣。不知四物乃女科杂证诸疾妙剂，若用以产后，大非所宜。予考方书之意，以为白芍用酒重
复制炒，去其酸寒之性，但存生血活血之能。或再加黑姜辛热佐之，有何不可？又谓芍药性清微酸而收，
最宜于阴气散失之证，岂不为产后要药？但观其再制以酒炒，则他寒凉峻削之不宜用，概可知矣。
予思芍药，初产三五日，所当禁用。若产日已久，以酒制透，为他药之佐，犹可。惟四物汤中生地更凉，
直走血分，且伤脾胃，为害愈甚。或云易以熟地补益真阴，则称为至当，独不思熟地性滞，更使血滞不快，
虽有芎归反行牵制，而少行动，亦非新产者所宜。盖新产之妇，血气俱虚，但存秋冬肃杀之气，而鲜春
夏生发之机，故最忌寒凉，大宜温药，以助资始资生之源也。是以丹溪先生谓芍药伐生发之气，
禁而不用，良有深意矣。予叹世之概以四物治产后者，胡不思乎？
生化汤论曰∶产后诸证，皆缘气血骤下，元气大亏，用药不同常法。是以有虚极不能姑待者，则当峻
补之中，加入温行之药。峻补则力大而可宣通，温行则流畅而不凝滞。至于逐瘀之剂，即实证亦不可用峻
厉之药。况产后大虚，恐血无主宰，一任药力，便为崩而不止，虚则易脱，势如覆水难收矣。夫人遇大
病之后，血气两虚，犹当调补，况产后脾胃血气之虚衰，更有甚焉者乎？今之治产后者，亦云元气
因产而亏，营运失度，不免瘀血停留，致成诸疾。必以去瘀为先，瘀消方可行补，甚有用回生丹，攻血
块下胞衣，殒人性命者。此盖止知专攻旧瘀，而不知新血转伤之害，岂知块固当消，而新血犹当生也。盖
专消则新血不生，专生则旧血反滞。予考新产诸方，莫若生化汤为产后第一妙方，其方芎、归、桃仁
温中行血，善去旧血，骤生新血，佐以炙黑干姜、炙草，引三味入于肺肝，行中有补，化中有生，故名生
化，盖因功用而立名也。又有加入益母草一钱五分，功效亦同。此实治产之良方，保全产妇之圣药也。故
冯氏因此方之妙，变化用于临产，加人参、桂、牛膝、红花，
又为催生之神剂矣。
生化汤方 凡孕妇临月，即预备生化汤数剂，俟临产之时，即为预先煎就，产下随服二三道，以
逐瘀生新，再无产后诸证之患。无论正产半产，虽少壮产妇，俱宜服之，故此汤为产后七日内要药。倘
产下之时，未及煎服，凡产后诸证，仍以此汤治之。
全当归（八钱，酒洗） 川芎（四钱） 干姜（四分，炙黑、存性） 桃仁（十粒，去皮尖，
打碎） 炙草（五分）
水二钟，煎七分，加酒小半钟。如素日不能饮酒者，加六七茶匙，稍热服之。其药渣留并后帖药渣
合而再煎，两帖共三煎。在产下一、二时辰内，未进饮食，先相继煎服，能速化旧血而骤长新血，不特可免
目前晕厥、汗、崩、恶露停滞等患，且诸病不生，精神百倍矣。如胎前素虚之人，产后又当再制两帖
煎服，以防倦怠。若产下已服一、二帖，而块痛未除，仍当再进几帖，块痛自消矣。
凡产后各种疾病，古方多采用四物汤加减治疗，为什么呢？因为方中含有川芎、当归的辛温之性，配合地黄、白芍的寒凉之性，温热与寒凉适中，可以说是没有隐患了。却不知道四物汤是妇科杂病诸疾的妙剂，如果用于产后，则非常不适宜。我考察方书的用意，认为白芍用酒重复炒制，去掉其酸寒的性质，只保留生血活血的功效。或者再加黑姜辛热来佐助，有什么不可以呢？又有人说芍药性质清微酸而收敛，最适合阴气散失的病证，这难道不是产后的要药吗？但是看它经过酒炒再制，那么其他寒凉峻烈削弱的药物不宜使用，也就全都可以知道了。
我想芍药在初产后的三五天内，应当禁用。如果生产日子已久，用酒彻底炮制，作为其他药物的佐使，还可以。只有四物汤中的生地黄更凉，直入血分，而且损伤脾胃，危害更加严重。有人说换成熟地来补益真阴，则称为最恰当，只是没考虑到熟地性质黏滞，更会使血液运行不畅，虽然有川芎、当归反而起到牵制作用，但药力微弱，也不是新近分娩者所适宜的。大概新产的妇女，气血都虚弱，只存有秋冬肃杀之气，而缺乏春夏生发之机，所以最忌讳寒凉，大宜用温药，以资助先天后天之源。因此丹溪先生认为芍药伐伤生发之气，禁止不用，确实有深意啊。我感叹世上的人一概用四物汤治疗产后病，怎么不想想呢？
生化汤论说：产后各种证候，都是因为气血突然下行，元气大亏，用药不同于常规方法。所以对于虚极不能等待的，应当在峻补之中，加入温行的药物。峻补则力量大而可宣通，温行则流畅而不凝滞。至于逐瘀的药剂，即使是实证也不可用峻厉的药物。何况产后大虚，恐怕血液失去主宰，任由药力作用，就会造成崩漏不止，虚则容易脱陷，形势如同泼出去的水难以收回。人遇到大病之后，气血两虚，还应当调补，何况产后脾胃气血的虚衰，更有甚于此的呢？现在治疗产后病的人，也说元气因生产而亏损，营运失去节度，不免有瘀血停留，导致形成各种疾病。必须以去瘀为先，瘀血消除后方可进行补益，甚至有用回生丹，攻逐血块、下胞衣，丧人性命的情况。这大概只知道专攻旧瘀，而不知道新血转被伤害的危害，哪里知道血块固然应当消除，而新血还应当生成呢。大概专于消除则新血不生，专于生新则旧血反而停滞。我考察新产的各种方剂，没有比得上生化汤为产后第一妙方，这个方子中川芎、当归、桃仁温中行血，善于去除旧血，迅速生成新血，佐以炙黑干姜、炙甘草，引导这三味药进入肺肝二经，行中有补，化中有生，所以名叫生化，是因为功用而立名的。又有加入益母草一钱五分，功效也相同。这确实是治疗生产的良方，保全产妇的圣药啊。所以冯氏因为这个方的奇妙，变化用于临产时，加入人参、桂枝、牛膝、红花，又成为催生的神剂了。
生化汤方：凡是孕妇临近预产期，就预备生化汤几剂，等到临产之时，就预先煎好，生下后随即服用二三服，以逐瘀生新，再无产后各种疾病的祸患。无论正常分娩还是小产，即使是年轻强壮的产妇，都适宜服用，所以此汤是产后七日内的要药。倘若生下时，来不及煎服，凡是产后各种疾病，仍然以此汤治疗。
全当归（八钱，酒洗） 川芎（四钱） 干姜（四分，炙黑、存性） 桃仁（十粒，去皮尖，打碎） 炙甘草（五分）
用水二钟，煎至七分，加酒小半钟。如平时不能饮酒的人，加六七茶匙，稍热服用。药渣留下并与下一帖的药渣合并再煎，两帖共三煎。在生产后一、两个时辰内，尚未进食，先相继煎服，能迅速化解旧血而快速生长新血，不仅可免除目前晕厥、出汗、崩漏、恶露停滞等祸患，而且各种疾病不生，精神百倍了。如果胎前素体虚弱的人，产后又应当再制作两帖煎服，以防倦怠。若生下后已服用一、两帖，而腹痛包块未除，仍应当再进几帖，腹痛包块自然消除矣。
All diseases occurring after childbirth are traditionally treated with modifications of Siwu Tang (Four Substances Decoction). Why? Because the formula contains Xiong (Ligustici Chuanxiong Rhizoma) and Gui (Angelicae Sinensis Radix), which are acrid and warm, assisted by Di (Rehmanniae Radix) and Shao (Paeoniae Radix Alba), which are cold and cool. The balance of warmth and cold is moderate, seemingly without risk. However, one fails to realize that Siwu Tang is an excellent remedy for various miscellaneous gynecological disorders, but it is highly inappropriate for use postpartum. Upon examining the intent of classical formulas, I understand that Bai Shao (Paeoniae Radix Alba) should be stir-fried repeatedly with wine to remove its sour and cold nature, retaining only its ability to generate and invigorate blood. One might also add Hei Jiang (Scorched Zingiberis Rhizoma), which is acrid and hot, as an assistant; what harm would there be in this? Others argue that Shaoyao (Paeoniae Radix) has a clear, slightly sour, and astringent nature, making it most suitable for conditions where Yin Qi (Vital Energy of Yin) dissipates, thus claiming it is a crucial herb for postpartum care. But observing that it is prepared by wine-frying, one can infer that other harsh, cold, and cooling herbs are unsuitable.
I consider that Shaoyao (Paeoniae Radix) should be strictly contraindicated during the first three to five days after delivery. If some time has passed since delivery, and it is thoroughly processed with wine to serve as an assistant to other herbs, it may be acceptable. However, Sheng Di (Rehmanniae Radix Recens) in Siwu Tang is even colder; it directly enters the Blood aspect and damages the Spleen and Stomach, causing greater harm. Some suggest substituting Shu Di (Rehmanniae Radix Preparata) to tonify True Yin, calling it most appropriate. Yet, they fail to consider that Shu Di has a cloying and stagnant nature, which further impedes smooth blood circulation. Although Xiong and Gui provide some counteracting movement, their effect is weak, making it unsuitable for newly delivered women. Generally, women who have just given birth suffer from deficiency of both Qi and Blood; their constitution retains the desiccating energy of Autumn and Winter, lacking the generative spirit of Spring and Summer. Therefore, they must avoid cold and cool substances and strongly benefit from warm medicines to support the source of generation and nourishment. Thus, Mr. Danxi stated that Shaoyao (Paeoniae Radix) destroys the generative Qi and should be prohibited; this holds profound meaning. I sigh at those in the world who indiscriminately use Siwu Tang for postpartum conditions; why do they not reflect upon this?
Regarding Shenghua Tang (Life Generation Decoction): All postpartum syndromes arise because Qi and Blood suddenly descend, leading to a severe depletion of Yuan Qi (Primal Qi). Therefore, medication differs from standard methods. For cases of extreme deficiency that cannot wait, one must employ vigorous tonification while adding warming and moving herbs. Vigorous tonification provides strong power to promote circulation, while warming and moving herbs ensure fluidity without stagnation. As for formulas that expel stasis, even in excess patterns, harsh and aggressive drugs should not be used. Moreover, postpartum deficiency is significant; if Blood loses its mastery, allowing the drug's force to act unchecked, it may lead to unstoppable flooding (Beng Lou). Deficiency leads to collapse, a situation as irreversible as spilt water. After a major illness, when both Qi and Blood are deficient, regulation and tonification are still necessary; how much more so for the severe deficiency of the Spleen, Stomach, Qi, and Blood after childbirth? Current practitioners treat postpartum conditions by acknowledging that Yuan Qi is depleted by delivery, causing dysregulation of movement and retention of Blood Stasis, leading to various diseases. They insist on expelling stasis first, believing tonification can only follow once stasis is cleared. Some even use Huisheng Dan (Revival Pill) to attack blood masses and expel the placenta, resulting in death. This approach knows only to attack old stasis but ignores the harm done to new Blood. It fails to recognize that while masses must be resolved, new Blood must also be generated. Focusing solely on elimination prevents new Blood formation; focusing solely on generation causes old Blood to stagnate. In my examination of formulas for new deliveries, none surpass Shenghua Tang as the premier miracle formula for postpartum care. Its ingredients—Xiong (Ligustici Chuanxiong Rhizoma), Gui (Angelicae Sinensis Radix), and Tao Ren (Persic Semen)—warm the middle and move Blood, effectively removing old Blood and rapidly generating new Blood. Assisted by Zhi Hei Gan Jiang (Prepared Scorched Ginger Rhizoma) and Zhi Cao (Prepared Licorice Root), these three herbs are guided into the Lung and Liver channels. Movement contains tonification, and transformation generates life; hence the name "Sheng Hua" (Generation and Transformation), named according to its function. Adding Yi Mu Cao (Leonuri Herba) at 1.5 qian yields similar efficacy. This is truly an excellent formula for childbirth and a sacred medicine for preserving the mother. Consequently, Feng modified this formula for use during labor, adding Ren Shen (Ginseng Radix), Gui Zhi (Cinnamomi Ramulus), Niu Xi (Achyranthis Bidentatae Radix), and Hong Hua (Carthami Flos), creating a divine agent for inducing labor.
Shenghua Tang Formula: Pregnant women approaching term should prepare several doses of Shenghua Tang in advance. When labor begins, decoct it beforehand. After delivery, administer two or three doses immediately to expel stasis and generate new Blood, preventing all postpartum complications. Whether for normal delivery or miscarriage, and regardless of whether the mother is young or robust, she should take it. Thus, it is a essential medicine for the seven days following delivery. If it was not decocted and taken immediately after delivery, it remains the treatment of choice for any postpartum syndrome.
Quan Dang Gui (Angelicae Sinensis Radix, 8 qian, washed with wine), Chuan Xiong (Ligustici Chuanxiong Rhizoma, 4 qian), Gan Jiang (Zingiberis Rhizoma, 4 fen, scorched black, retaining its character), Tao Ren (Persic Semen, 10 grains, skin and tips removed, crushed), Zhi Cao (Prepared Glycyrrhizae Radix et Rhizoma, 5 fen).
Decoct in 2 zhong of water until reduced to 7/10. Add a small amount of wine (half a zhong). For those who cannot drink alcohol normally, add 6-7 tea spoons. Take warm. Retain the dregs and combine them with the dregs of the next dose for a second decoction; two doses yield three decoctions total. Within one to two hours after delivery, before eating, decoct and take these successively. This rapidly resolves old Blood and quickly generates new Blood, not only preventing immediate symptoms such as fainting, sweating, flooding, and lochia stasis, but also preventing other diseases and restoring vitality. For women who were deficient before pregnancy, prepare two additional doses after delivery to prevent fatigue. If one or two doses have been taken after delivery but abdominal pain and masses persist, continue administering doses until the pain and masses resolve naturally.