螈者，筋脉拘急也， 者，筋脉弛纵也。《经》云∶肝主筋藏血，肝气为阳为火，
肝血为阴为水，去血过多，阳火炽盛，筋无所养而然，用八珍汤加丹皮、钩藤以生阴
血，则阳火退而诸证愈，不应，用四君子芎归丹皮钩藤补脾土，盖血生于至阴，至阴
者，脾土也，且气有生血之功耳。故小儿吐泻之后，脾胃亏损，亦多患之，乃虚象也。
若肢体恶寒，脉微细者，此为真状。若脉浮大，发热烦渴，此为假象，惟当固本为善。
若无力抽搐，戴眼反折，汗出如珠者，不治。
产后惊悸者，由脏虚，心气不足，阴虚邪热乘心，以致惊不自安，悸动不定，目睛
不转，而不能动，诊其脉动而弱者，惊悸也。惟宜养血，佐以安神，血生则神有所根据也。
产后发狂者，此阴血暴崩，肝虚火炎之极也。宜泽兰、归、地、牛膝、茯神、远志、枣仁加
童便主之。若因败血停滞，用调经散。若因
心血虚损，用柏子仁散，若因肾虚阴火上迫，而为如狂者，宜八味汤加减服之。要知产后
大虚，而继诸病，则当以虚为本，而病为标也。
书以产后口鼻黑气，及见鼻衄，为不可治者，何也？盖五脏之华，皆上注于面，见
色红赤者，阳热之生气也。青黑者，阴寒之绝气也。况口鼻为阳明多血多气之部，而见
阴寒惨杀之气，则胃中阳和之气衰败可知矣。复至鼻衄，则阳亡阴走也。胃绝肺败，
阴阳两亡，故不可治。及产后舌紫黑者，为血先死，不治，盖心主血，少阴气绝，则血不上阴耳。
抽搐（筋脉拘急）是指筋脉拘挛紧急，瘛疭（jiè zòng，筋脉弛纵）是指筋脉松弛舒缓。《黄帝内经》说：肝主管筋脉并贮藏血液，肝气属于阳、属于火，肝血属于阴、属于水。如果失血过多，导致阳火炽盛，筋脉失去滋养就会发生这种情况，使用八珍汤（Bazhen Tang, Eight-Treasure Decoction）加入牡丹皮（Mudanpi, Moutan Cortex）和钩藤（Gouteng, Uncariae Ramulus cum Uncis）以滋生阴血，那么阳火消退，各种症状就会痊愈；如果无效，则使用四君子汤（Sijunzi Tang, Four-Gentlemen Decoction）加川芎（Chuanxiong, Chuanxiong Rhizoma）、当归（Danggui, Angelicae Sinensis Radix）、牡丹皮、钩藤来补益脾土，因为血液生于至阴之地，而至阴之地就是脾土，而且气有生化的功能。所以小儿在呕吐腹泻之后，脾胃受损亏损，也常患此病，这是虚证的表现。如果出现肢体恶寒、脉象微细的情况，这才是真搐（真正的抽搐）。如果脉象浮大、发热、烦躁口渴，这是假象，只应当固护根本才是上策。如果出现无力抽搐、戴眼（两眼上视固定不动）、角弓反张（身体向后弯曲如弓）、汗出如珠的症状，则属于不治之症。
产后惊悸（心悸不安），是由于脏腑虚弱，心气不足，阴虚导致邪热乘袭心脏，从而引起惊恐不自安，心跳不定，眼球不能转动，身体不能活动，诊察其脉象动而弱，这就是惊悸。只宜养血，辅以安神，血生则神有所依附。
产后发狂，这是因为阴血突然大量流失，肝虚导致火势炎上的极期。适宜用泽兰（Zelan, Lycopii Herba）、当归、地黄（Dihuang, Rehmanniae Radix）、牛膝（Niuxi, Achyranthis Bidentatae Radix）、茯神（Fushen, Poria cum Radice）、远志（Yuanzhi, Polygalae Radix）、酸枣仁（Suanzaoren, Ziziphi Spinosae Semen）加童便（Tongbian, Human Urine）为主方治疗。如果是因败血停滞引起，使用调经散（Tiaojing San, Regulating Menstruation Powder）。如果是因心血虚损引起，使用柏子仁散（Baiziren San, Biota Seed Powder）。如果是因肾虚、阴火上迫，出现类似发狂的症状，适宜用八味丸（Bawei Wan, Eight-Ingredient Pill）加减服用。要知道产后是大虚之体，继而引发的各种疾病，都应当以虚为本，而以病为标。
书籍记载产后口鼻出现黑气，以及见鼻衄（nosebleed），认为是不可治的，为什么呢？大概五脏的精华中，都向上注于面部，见到颜色红赤的，是阳热生气旺盛的表现。见到青黑色的，是阴寒绝气的表现。况且口鼻是阳明经多血多气的部位，如果见到阴寒惨杀之气，就可以知道胃中阳和之气已经衰败了。再加上鼻衄，就是阳气亡脱、阴血外走。胃气绝、肺气败，阴阳两亡，所以不可治。至于产后舌头呈现紫黑色，是血先死的表现，也不治，因为心主血，少阴经气绝，则血不能上荣于阴（此处指舌/上部）。
Convulsion (Jingchou) refers to the spasm and tension of sinews and vessels, while Ji Zong (jiè zòng) refers to the relaxation and laxity of sinews and vessels. The *Classic* states: "The Liver governs the sinews and stores blood; Liver Qi is Yang and Fire, while Liver Blood is Yin and Water." When excessive blood loss occurs, Yang Fire becomes blazing, causing the sinews to lose nourishment, which leads to this condition. Use Bazhen Tang (Eight-Treasure Decoction) added with Mudanpi (Moutan Cortex) and Gouteng (Uncariae Ramulus cum Uncis) to generate Yin Blood; then Yang Fire will recede and all symptoms will resolve. If there is no response, use Sijunzi Tang (Four-Gentlemen Decoction) added with Chuanxiong (Chuanxiong Rhizoma), Danggui (Angelicae Sinensis Radix), Mudanpi, and Gouteng to tonify Spleen Earth. This is because blood is generated from the Supreme Yin, and the Supreme Yin is Spleen Earth; furthermore, Qi has the function of generating blood. Therefore, after vomiting and diarrhea in infants, when the Spleen and Stomach are damaged and depleted, they often suffer from this condition, which is a manifestation of deficiency. If the limbs feel aversion to cold and the pulse is faint and thin, this is true convulsion. If the pulse is floating and large, accompanied by fever, irritability, and thirst, this is a false appearance; one should only focus on consolidating the root as the best approach. If there is weak convulsion, Dai Yan (eyes fixed upward), Fan Zhe (opisthotonos or body bent backward like a bow), and sweating like pearls, it is incurable.
Postpartum Jing Ji (palpitations and fright) arises from visceral deficiency and insufficient Heart Qi. Yin deficiency allows pathogenic heat to invade the Heart, resulting in uncontrolled fright, restless palpitations, inability to move the eyeballs, and immobility of the body. Palpation reveals a moving and weak pulse, indicating Jing Ji. Treatment should primarily nourish Blood and assist in calming the Spirit; once Blood is generated, the Spirit has a foundation.
Postpartum mania results from sudden massive hemorrhage of Yin Blood and extreme Liver deficiency with blazing Fire. The appropriate prescription includes Zelan (Lycopii Herba), Danggui, Dihuang (Rehmanniae Radix), Niuxi (Achyranthis Bidentatae Radix), Fushen (Poria cum Radice), Yuanzhi (Polygalae Radix), Suanzaoren (Ziziphi Spinosae Semen), and Tongbian (Human Urine). If caused by stagnant lochia, use Tiaojing San (Regulating Menstruation Powder). If caused by Heart Blood deficiency, use Baiziren San (Biota Seed Powder). If caused by Kidney deficiency with pressing Yin Fire leading to manic-like symptoms, use Bawei Wan (Eight-Ingredient Pill) with modifications. It must be understood that postpartum is a state of great deficiency; subsequent diseases should be treated by addressing the deficiency as the root and the disease as the branch.
Texts record that black qi appearing around the mouth and nose during the postpartum period, along with Bi Nu (epistaxis/nosebleed), are considered incurable. Why? The essence of the Five Zang organs flows upward to the face. Redness indicates vigorous Yang Heat. Cyan or black indicates the extinction of Yin Cold. Moreover, the mouth and nose are areas where the Yangming Meridian has abundant Qi and Blood. The presence of Yin Cold and desolate Qi indicates that the warm Yang Qi in the Stomach has declined and failed. With the addition of epistaxis, it signifies the loss of Yang and the escape of Yin. With the exhaustion of Stomach Qi and the failure of Lung Qi, both Yin and Yang perish; thus, it is incurable. As for a purple-black tongue after childbirth, it indicates that the Blood has died first, which is also incurable. This is because the Heart governs Blood; when the Qi of the Shaoyin Meridian is exhausted, Blood cannot ascend to nourish the upper regions.