产后腑脏劳伤，血虚不复，而风邪乘之，搏于血气，使气不宣泄，而痞涩生热，或肢节
烦愦，或唇干燥，但因虚生热，故谓之虚热也。
夫产损动腑脏，劳伤气血。轻者，节养将摄，盈月便得平复；重者，其日月虽满，气血
犹未调和，故虚羸也。然产后虚羸，将养失所，多沉滞劳瘠，乍起乍卧。风冷多则辟瘦，颜
色枯黑，食饮不消；风热多则 退、虚乏，颜色无异于常，食亦无味。甚伤损者，皆
着床，此劳瘠也。
产则血气劳伤，腑脏虚弱，而风冷客之，风冷搏血气，血气则不能自温于肌肤，使人虚
乏疲顿，致羸损不平复，谓之风冷虚劳。若久不瘥，风冷乘虚而入腹，搏于血则痞涩；入肠
则下痢不能养，或食不消；入子脏，并胞脏冷，亦使无子也。
夫汗，由阴气虚而阳气加之，里虚表实，阳气独发于外，故汗出也。血为阴，产则伤血
，是为阴气虚也；气为阳，其气实者，阳加于阴，故令汗。汗出而阴气虚弱不复者，则汗出
不止。凡产后皆血虚，故多汗，因之遇风，则变为痉。纵不成痉，则虚乏短气，身体柴瘦，
唇口干燥，久普通经水断绝，津液竭故也。
肝藏血，心主血脉。产则营损肝心，伤动血气。血为阴，阴虚面阳气乘之，即令汗血。
此为阴气大虚，血气伤动，故因汗血出，乃至毙人。
产后气血俱伤，脏腑功能虚损衰竭，气机在体内不能宣通，因此导致烦闷。
产后脏腑劳损受伤，血液亏虚无法恢复，风邪趁机侵袭，与血气相搏结，使气机不能宣泄，从而产生痞塞涩滞并化热，或者出现肢体关节烦乱昏沉，或者嘴唇干燥，这都是因为虚损而生热，所以称为虚热。
分娩损伤了脏腑，劳伤了气血。病情轻的，通过节制调养，一个月左右就能恢复健康；病情重的，即使时间过了很久，气血仍然没有调和，所以身体虚弱消瘦。然而产后虚弱消瘦，如果调养不当，多会陷入沉滞、劳累消瘦的状态，时而起身时而卧床。感受风寒较多的人，会出现形体消瘦，面色枯黑，饮食不消化；感受风热较多的人，会出现发热、虚乏无力，面色与常人无异，饮食也没有味道。损伤严重的，都会卧床不起，这就是所谓的劳瘠（慢性消耗性疾病）。
分娩导致气血劳损，脏腑虚弱，风寒之邪客居体内，风寒与血气相搏结，血气就不能温暖肌肤，使人感到虚乏疲惫，导致身体消瘦损耗而不能恢复，这称为风冷虚劳。如果长久不愈，风寒乘虚进入腹部，与血相搏则产生痞塞涩滞；进入肠道则导致下痢且无法滋养身体，或者食物不消化；进入子宫，并导致胞宫寒冷，也会造成不孕。
汗液，是由于阴气虚弱而阳气相对偏盛，里虚表实，阳气独自发散于体表，所以出汗。血属于阴，分娩时损伤血液，这就是阴气虚弱；气属于阳，如果气实，阳气加于阴分，就会导致出汗。出汗后阴气虚弱不能恢复的，就会汗出不止。凡是产后都血虚，所以容易多汗，如果因此遇到风邪，就会转变为痉病（以项背强直、角弓反张为特征的疾病）。即使不变成痉病，也会出现虚乏、气短，身体柴瘦，嘴唇口舌干燥，长久以后月经断绝，这是因为津液枯竭的缘故。
肝藏血，心主血脉。分娩时营血受损，累及肝心，扰动血气。血属阴，阴虚则阳气乘虚而入，就会导致汗血（随汗而出的血或血汗）。这是因为阴气极度虚弱，血气受到损伤和扰动，所以随着汗液排出血液，甚至可能导致死亡。
Blood and Qi are both injured during childbirth, leading to deficiency and exhaustion of the Zang-Fu organs. When Qi fails to circulate freely within, it causes vexation (restlessness).
After childbirth, the Zang-Fu organs are damaged by overwork, and blood deficiency prevents recovery. Wind pathogen takes advantage of this weakness to invade, clashing with Blood and Qi, preventing their free dissemination. This results in stagnation,涩滞 (obstruction), and generation of heat. Symptoms may include vexation and dizziness in the limbs and joints, or dryness of the lips. Since the heat arises from deficiency, it is termed Deficient Heat (Xu Re).
Childbirth damages the Zang-Fu organs and exhausts Blood and Qi. In mild cases, dietary regulation and rest allow recovery within a month. In severe cases, even after sufficient time has passed, Blood and Qi remain unharmonized, resulting in emaciation and weakness. However, if postpartum weakness and emaciation are managed improperly, one may suffer from chronic stagnation and wasting diseases (Lao Ji), alternating between rising and lying down. Excessive exposure to wind-cold leads to emaciation, dark and withered complexion, and indigestion; excessive exposure to wind-heat leads to feverish sensations and fatigue, normal complexion, and loss of appetite. Severe injuries result in being bedridden, which is classified as Wasting-Thirst/Wasting Disease (Lao Ji).
Childbirth injures Blood and Qi, weakening the Zang-Fu organs. If wind-cold invades and clashes with Blood and Qi, they fail to warm the skin and muscles, causing fatigue, debility, and failure to recover, known as Wind-Cold Deficiency Consumption (Feng Leng Xu Lao). If untreated for a long time, wind-cold enters the abdomen due to deficiency. Clashing with Blood, it causes obstruction; entering the intestines, it causes diarrhea and malabsorption or indigestion; entering the uterus and causing coldness in the Bao Palace (Uterus), it leads to infertility.
Sweat occurs when Yin Qi is deficient and Yang Qi becomes relatively excess, creating interior deficiency and exterior excess. Yang Qi alone radiates outward, causing sweating. Blood belongs to Yin; childbirth injures Blood, constituting Yin deficiency. Qi belongs to Yang; if Qi is substantial, Yang adds to Yin, causing sweat. If Yin Qi remains weak and does not recover after sweating, sweating continues incessantly. Postpartum women generally have Blood deficiency, making them prone to sweating. If exposed to wind in this state, it may transform into Spasm Disease (Jing Bing), characterized by stiffness and convulsions. Even if spasm does not occur, symptoms include debility, shortness of breath, emaciation, dry lips and mouth, and eventually amenorrhea due to depletion of body fluids (Jin Ye).
The Liver stores Blood, and the Heart governs the Blood vessels. Childbirth damages Ying (Nutrient) Qi and affects the Liver and Heart, disturbing Blood and Qi. Blood is Yin; when Yin is deficient, Yang attacks, leading to Hemorrhagic Sweat (Han Xue). This is caused by severe Yin deficiency and disturbance of Blood and Qi, causing blood to exit with sweat, which can be fatal.