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 sòng，筋脉弛纵）是指筋脉松弛舒缓。《黄帝内经》说：肝主管筋脉并储藏血液，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，筋脉得不到滋养就会发生这种情况，使用八珍汤（由四君子汤和四物汤组成，具有气血双补功效）加入牡丹皮、钩藤来滋生阴血，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（人参、白术、茯苓、甘草）加上川芎、当归、牡丹皮、钩藤来补益脾土，因为血液产生于至阴之地，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，脾胃亏损，也常常患此病，这是虚证的表现。如果出现肢体怕冷、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好的治疗方法。如果出现无力抽搐、戴眼（眼球上翻）、角弓反张、汗出如珠的情况，属于不治之症。
产后惊悸（心神不宁、心跳不安），是由于脏腑虚弱，心气不足，阴虚导致邪热乘袭心脏，以致惊恐不自安，心悸跳动不定，眼睛不能转动，身体也不能活动，诊察其脉搏动而弱，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重情况。适宜用泽兰、当归、地黄、牛膝、茯神、远志、酸枣仁加童便（童子尿）为主治疗。如果是由于败血停滞引起，使用调经散。如果是由于心血虚损引起，使用柏子仁散。如果是由于肾虚、阴火上迫，出现类似发狂的症状，适宜用八味丸（即金匮肾气丸，由熟地黄、山药、山茱萸、泽泻、茯苓、牡丹皮、桂枝、附子组成）加减服用。要知道产后是大虚之体，继而出现的各种疾病，都应当以虚为本，而以病为标。
书中认为产后口鼻出现黑气，以及出现鼻衄（鼻出血），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，而出现阴寒惨杀之气，就可以知道胃中阳和之气已经衰败了。再加上出现鼻衄，就是阳气亡脱、阴血外走的表现。胃气绝、肺气败，阴阳两亡，所以不可治。等到产后舌头呈现紫黑色，说明血先死，也是不治之症，因为心主血脉，少阴经气绝，则血不能上行滋养阴窍。
Chou (convulsion) refers to the contraction and tension of tendons and vessels, while Ji Song (relaxation and flaccidity) refers to the relaxation and slackening of tendons and vessels. The *Classic* states: "The Liver governs the tendons and stores blood. Liver Qi belongs to Yang and Fire, while Liver Blood belongs to Yin and Water." When excessive blood loss occurs, Yang Fire becomes blazing, and the tendons lose their nourishment, resulting in this condition. Use Bazhen Tang (Eight Treasure Decoction, a formula for tonifying both Qi and Blood) added with Mudan Pi (Moutan Cortex) and Gouteng (Uncaria Rhynchophylla) 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) combined with Xiong Gui (Chuanxiong Radix and Angelicae Sinensis Radix), Mudan Pi, and Gouteng to tonify Spleen Earth. This is because Blood is generated from the Supreme Yin, which is Spleen Earth, and Qi has the function of generating Blood. Therefore, after infants suffer from vomiting and diarrhea, if their Spleen and Stomach are damaged, they often suffer from this condition as well; this is a manifestation of deficiency. If there is aversion to cold in the limbs and a faint, fine pulse, this is true convulsion. If the pulse is floating and large, accompanied by fever, irritability, and thirst, this is a false manifestation; one should only focus on consolidating the root, which is the best approach. If there is weak convulsion, staring upward (Dai Yan), opisthotonos (back arching), 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, causing fright without peace and palpitations that are restless and unsteady. The eyes cannot move, and the body cannot be moved. Palpating the pulse reveals it to be moving but weak, indicating Jing Ji. Treatment should primarily involve nourishing Blood, assisted by calming the Spirit. When Blood is generated, the Spirit has a foundation.
Postpartum mania results from the sudden massive loss of Yin Blood and extreme Liver deficiency leading to blazing Fire. It is appropriate to treat with Zelan (Lycopus Herba), Dang Gui (Angelicae Sinensis Radix), Di Huang (Rehmanniae Radix), Niu Xi (Achyranthis Bidentatae Radix), Fushen (Poria with Hostwood), Yuanzhi (Polygalae Radix), Zaoren (Ziziphi Spinosae Semen), plus Tong Bian (Child's Urine). If caused by stagnant lochia, use Tiaojing San (Regulate Menses Powder). If caused by Heart Blood deficiency, use Baizi Ren San (Biota Seed Powder). If caused by Kidney deficiency with forcing Yin Fire, presenting as pseudo-mania, use Bawei Tang (Eight-Ingredient Decoction) modified. One must understand that postpartum is a state of great deficiency; subsequent diseases should be treated with deficiency as the root and disease as the branch.
Texts state that black qi appearing around the mouth and nose during the postpartum period, along with Bi Nu (epistaxis/nosebleed), are signs of incurability. Why? The essence of the Five Viscera all ascend 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 channel has abundant Qi and Blood. The appearance of Yin Cold and desolate Qi indicates that the warm Yang Qi in the Stomach has failed. Furthermore, epistaxis 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 are lost; thus, it is incurable. Similarly, a purple-black tongue after childbirth indicates that the Blood has died first, which is also incurable. This is because the Heart governs Blood; when the Qi of the Shaoyin channel exhausts, Blood cannot ascend to nourish the upper orifices.