《证治要诀》曰∶弥月俗名满肚，多有恣意食物，致伤食发热，有类伤寒食复证，宜先用红丸子一二服，却
进小柴胡汤，此论盖有所本。
王节斋曰∶产后脾胃大虚，多有过服饮食伤滞发热者，误作血虚则不效。故凡遇产后发热，须问服何饮食，
有无伤积饱闷，恶食泄泻等证，只作伤食治之。若发热而饮食调者，方用补血正法。
薛立斋曰∶前证若胸膈饱闷，嗳腐恶食，或吞酸吐泻，发热，此为饮食停滞，宜四君子加浓朴、楂、曲。若
胸膈闷满，食少发热，或食难化，此为脾气虚弱，宜四君子加炮姜。若用峻厉之剂，复伤元气，则谬矣。
慎斋按∶以上四条，序产后有伤食发热之证也。产后发热有六证，一曰血虚发热，二曰劳力发热，三曰瘀
血发热，四曰风寒发热，五曰伤食发热，六曰蒸乳发热。须分有余不足治法，如血虚、劳力为不足，瘀血、伤食、
风寒、蒸乳，为不足中之有余。不足者固宜大补气血，而不足中之有余，亦不可以务末而忘本也。《金匮》胃
实一证，虽下亦当酌量。
赵养葵曰∶如胎前原有阴火证，至产后去血过多，必大发热，烦躁汗出等证。若根据前法，大补气血，其证必
甚，当用逍遥散以清肝火，养肝血。因去血既多，肝虚血燥之故，不可泥于气血虚之论也。
朱丹溪曰∶产后发热，此热非有余之热，乃阴虚生内热耳，以补阴药大剂服之。必用干姜者何也？曰∶干姜
能入肺利气，入肝经引血药生血。然不可独用，与补阴药同用，此造化自然之妙。
娄全善曰∶产后发热，多属虚寒，唯干姜加入补阴药中神效，此丹溪之法也。
《证治要诀》说：满月俗称为“满肚”，此时产妇往往肆意进食，导致伤食发热，症状类似伤寒病中的“食复”（因饮食不当导致的复发）证候。应当先用红丸子服用一两次，然后再进服小柴胡汤，这种论述大概是有依据的。
王节斋说：产后脾胃功能极度虚弱，很多人因为过量饮食导致停滞而发热，如果误认为是血虚就会无效。所以凡是遇到产后发热，必须询问吃了什么食物，是否有积食饱闷、厌恶食物、腹泻等症状，只按照伤食来治疗。如果发热但饮食调理正常，才使用补血的正法。
薛立斋说：上述病症如果出现胸膈部饱闷、打嗝有腐臭味、厌恶食物，或者吞酸水、呕吐腹泻、发热，这是饮食停滞，适宜用四君子汤加浓朴、山楂、神曲。如果胸膈闷胀，食欲少且发热，或者食物难以消化，这是脾气虚弱，适宜用四君子汤加炮姜。如果使用猛烈峻厉的药物，反而会再次损伤元气，这就错了。
慎斋按语：以上四条，叙述了产后有伤食发热的证候。产后发热有六种证型，一是血虚发热，二是劳力发热，三是瘀血发热，四是风寒发热，五是伤食发热，六是蒸乳发热（乳汁郁积引起的发热）。必须区分有余和不足的治法，如血虚、劳力属于不足；瘀血、伤食、风寒、蒸乳，属于不足之中的有余。不足者固然应该大补气血，而对于不足之中的有余，也不能只顾细枝末节而忘记根本。《金匮要略》中提到的胃实一证，虽然可以用下法，但也应当斟酌衡量。
赵养葵说：如果在怀孕前原有阴火证，到了产后失血过多，必然会出现大发热、烦躁、出汗等症状。如果根据前面的方法，大补气血，病情一定会加重，应当用逍遥散来清肝火、养肝血。因为失血过多，导致肝虚血燥的缘故，不能拘泥于气血虚的理论。
朱丹溪说：产后发热，这种热不是有余之热，而是阴虚产生的内热，要用大剂量的补阴药服用。为什么一定要用干姜呢？回答说：干姜能入肺经利气，入肝经引导血药生血。然而不可单独使用，应与补阴药同用，这是造化自然的奥妙。
*Zhengzhi Yaojue* (Essentials of Diagnosis and Treatment) states: The full month postpartum period is colloquially called "Man Du" (Full Belly). During this time, women often eat indiscriminately, leading to food stagnation fever, which resembles the "Shi Fu" (recurrence due to improper diet) syndrome in *Shanghan* (Cold Damage) diseases. It is advisable to first administer Hong Wan Pill (Red Pill) one or two doses, and then proceed with Xiaochaihu Tang (Minor Bupleurum Decoction). This argument appears to be well-founded.
Wang Jiezhai stated: Postpartum spleen and stomach are greatly deficient. Many cases involve fever caused by excessive intake of food leading to stagnation; if mistakenly treated as Blood Deficiency, it will be ineffective. Therefore, whenever encountering postpartum fever, one must inquire about dietary intake, checking for signs such as food accumulation, fullness and oppression, anorexia, or diarrhea, and treat it solely as Food Stagnation. Only if the fever occurs while dietary regulation remains normal should the standard method of tonifying Blood be used.
Xue Lizhai stated: In the aforementioned conditions, if there is fullness and oppression in the chest and diaphragm, belching with a putrid odor, anorexia, acid regurgitation, vomiting, diarrhea, and fever, this indicates Food Stagnation. It is suitable to use Sijunzi Tang (Four Gentlemen Decoction) augmented with Houpo (Magnolia Bark), Shanzha (Hawthorn Fruit), and Shenqu (Medicated Leaven). If there is chest and diaphragmatic stuffiness, poor appetite with fever, or difficulty digesting food, this indicates Spleen Qi Deficiency. It is suitable to use Sijunzi Tang (Four Gentlemen Decoction) augmented with Paojiang (Prepared Ginger). Using harsh and drastic agents would further damage Yuan Qi (Original Qi), which is erroneous.
Shenzhen's commentary: The above four points describe the syndrome of postpartum fever due to food stagnation. There are six types of postpartum fever: 1. Blood Deficiency Fever, 2. Labor Fatigue Fever, 3. Blood Stasis Fever, 4. Wind-Cold Fever, 5. Food Stagnation Fever, and 6. Zhengru Fever (fever due to milk stasis). One must distinguish between excess and deficiency treatments. Blood Deficiency and Labor Fatigue belong to Deficiency; Blood Stasis, Food Stagnation, Wind-Cold, and Zhengru Fever belong to "Excess within Deficiency." For Deficiency, it is indeed appropriate to greatly tonify Qi and Blood. However, for Excess within Deficiency, one must not focus on the branches while forgetting the root. Although the "Stomach Excess" syndrome mentioned in *Jinkui Yaolue* (Essential Prescriptions of the Golden Cabinet) may warrant purgation, it must still be carefully considered.
Zhao Yangkui stated: If a patient originally had Yin Fire syndrome during pregnancy, after excessive blood loss postpartum, severe fever, irritability, and sweating will inevitably occur. If one follows the previous methods of greatly tonifying Qi and Blood, the symptoms will likely worsen. Instead, Xiaoyao San (Free and Easy Wanderer Powder) should be used to clear Liver Fire and nourish Liver Blood. Due to excessive blood loss causing Liver Deficiency and Blood Dryness, one cannot rigidly adhere to theories of mere Qi and Blood Deficiency.
Zhu Danxi stated: Postpartum fever is not heat from Excess, but rather internal heat generated by Yin Deficiency. Large doses of Yin-tonifying herbs should be administered. Why is Ganjiang (Dried Ginger) necessary? The answer is: Ganjiang (Dried Ginger) enters the Lung meridian to promote Qi circulation and enters the Liver meridian to guide Blood-tonifying herbs to generate Blood. However, it should not be used alone; it must be used in conjunction with Yin-tonifying herbs. This represents the natural wonder of creation.
Lou Quanshan stated: Postpartum fever mostly belongs to Deficiency-Cold. Adding Ganjiang (Dried Ginger) to Yin-tonifying herbs yields miraculous effects. This is the method of Danxi.