何松庵曰∶妊娠病疟，寒热俱作。气为阳，阳虚则恶寒。血为阴，阴虚则发热。盖怀胎最怕寒战，筋骨皆振，
易动其胎。用药者，必以安胎为首务。盖脾胃虚弱，饮食停滞。或为暑邪所感，六君子加桔梗、苍术、藿香。若
外邪多，饮食少，藿香正气散。外邪少，饮食多，人参养胃汤去半夏。热多寒少者，清脾饮去半夏。虚者用四兽
饮、四君子加陈皮、半夏、草果、大枣。若久不愈，六君子为主，佐以安胎药。
赵养葵曰∶有患胎疟者，一遇有胎，疟病即发。此人素有肝火，遇有孕则水养胎元，肝虚血燥，寒热往来，
似疟非疟也。以逍遥散清肝火，养肝血，兼六味丸，以滋化源。
慎斋按∶以上三条，序胎前有疟疾证也。妊娠疟疾，或有风寒暑热之邪，或有气血虚损之候，寒热交作，
颔战股栗，百节振摇，堕胎最易。故古人用药，先以安胎为急。但邪
不去，则胎亦未必安。故安胎莫先于去邪。而去邪如常山、草果、槟榔、浓朴、麻、桂、大黄，又未可浪投。唯
发表之中兼补气，清热之中兼养血为当耳。
陈良甫曰∶妊娠饮食生冷，脾胃不能克化，致令心腹疼痛。若血分病，则色赤；气分病则色白。血气俱病，则
赤白相杂。若热乘大肠，血虚受患，则成血痢矣。
壶仙翁曰∶有妇妊娠，病痢不止，诊其脉虚而滑，两关若涩。此由胎气不和，相火上炎而有热，似痢实非痢
也。用黄芩、白术以安胎，四物、生地以调血，数剂而安。
何松庵说：妊娠期间患疟疾，恶寒与发热同时发作。气属于阳，阳气虚弱就会怕冷；血属于阴，阴血不足就会发热。大概怀孕时最害怕寒战，筋骨都会颤抖，容易扰动胎元。用药的人，必须以安胎作为首要任务。因为脾胃虚弱，饮食停滞。或者被暑邪所感，用六君子汤加桔梗、苍术、藿香。如果外邪多，饮食少，用藿香正气散。外邪少，饮食多，用人参养胃汤去掉半夏。热多寒少的，用清脾饮去掉半夏。虚证用四兽饮、四君子汤加陈皮、半夏、草果、大枣。如果久治不愈，以六君子汤为主，佐以安胎药。
赵养葵说：有患胎疟的，一遇到怀孕，疟病就发作。这个人素有肝火，遇到怀孕则水液滋养胎元，导致肝虚血燥，寒热往来，像疟疾又不是疟疾。用逍遥散清肝火，养肝血，兼用六味地黄丸，以滋生化之源。
慎斋按语：以上三条，叙述了胎前有疟疾的证候。妊娠疟疾，或有风寒暑热之邪，或有气血虚损的表现，寒热交替发作，下巴颤抖大腿发抖，全身关节摇动，最容易堕胎。所以古人用药，先以安胎为急务。但是邪气不去，那么胎也未必能安。所以安胎没有比去除邪气更优先的了。然而去除邪气如常山、草果、槟榔、厚朴、麻黄、桂枝、大黄，又不可以随意投用。只有在发表的同时兼补气，在清热的同时兼养血才是恰当的。
陈良甫说：妊娠期间饮食生冷，脾胃不能消化，导致心腹疼痛。如果是血分病，大便颜色赤红；气分病则颜色白。血气和气都病了，则赤白相间。如果热邪侵袭大肠，血虚受患，则形成血痢。
壶仙翁说：有妇女怀孕，患痢疾不止，诊察其脉象虚而滑，两关部脉涩。这是由于胎气不和，相火上炎而有热，看似痢疾其实不是痢疾。用黄芩、白术来安胎，四物汤、生地黄来调血，几剂药后便安稳了。
He Song'an said: In pregnancy complicated by malaria, chills and fever occur simultaneously. Qi belongs to Yang; deficiency of Yang leads to aversion to cold. Blood belongs to Yin; deficiency of Yin leads to fever. Generally, during pregnancy, one is most afraid of shivering chills, where the sinews and bones tremble, which easily disturbs the fetus (Tai Yuan). When prescribing herbs, securing the fetus must be the primary task. This is because Spleen and Stomach are weak, with food stagnation. Or if affected by Summer-heat pathogen, use Liu Jun Zi Tang (Six Gentlemen Decoction) with Jie Geng (Platycodon Root), Cang Zhu (Atractylodis Rhizoma), and Huo Xiang (Pogostemonis Herba). If external pathogens are predominant and food intake is low, use Huo Xiang Zheng Qi San (Agaricus Powder for Regulating Qi). If external pathogens are few and food intake is high, use Ren Shen Yang Wei Tang (Ginseng Decoction for Nourishing the Stomach) without Ban Xia (Pinelliae Rhizoma). For cases with more heat than cold, use Qing Pi Yin (Clearing Spleen Drink) without Ban Xia. For deficiency patterns, use Si Shou Yin (Four Beasts Drink) or Si Jun Zi Tang (Four Gentlemen Decoction) plus Chen Pi (Citri Reticulatae Pericarpium), Ban Xia, Cao Guo (Tsaoko Fructus), and Da Zao (Jujubae Fructus). If it persists for a long time, base the prescription on Liu Jun Zi Tang, assisted by fetal-securing herbs.
Zhao Yangkui said: There are cases of "Fetal Malaria," where the malaria symptoms appear as soon as pregnancy occurs. This person has inherent Liver Fire. Upon pregnancy, the Water nourishes the Fetus, leading to Liver deficiency and dryness of Blood, resulting in alternating chills and fever, resembling malaria but not being true malaria. Use Xiao Yao San (Free and Easy Wanderer Powder) to clear Liver Fire and nourish Liver Blood, combined with Liu Wei Di Huang Wan (Six-Ingredient Pill with Rehmannia) to nourish the source of transformation and generation.
Shen Zhai's Note: The above three passages describe the syndrome of malaria before/during pregnancy. Pregnancy malaria may involve Wind-Cold, Summer-heat, or Heat pathogens, or signs of Qi and Blood deficiency, with alternating chills and fever, trembling of the jaw, shaking of the thighs, and trembling of all joints, making abortion very likely. Therefore, ancient physicians prioritized securing the fetus in their prescriptions. However, if the pathogenic factor is not expelled, the fetus may not necessarily be secured. Thus, nothing is more urgent for securing the fetus than expelling the pathogen. Yet, herbs that expel pathogens such as Chang Shan (Dichroae Radix), Cao Guo, Bing Lang (Arecae Semen), Hou Po (Magnoliae Officinalis Cortex), Ma Huang (Ephedrae Herba), Gui Zhi (Cinnamomi Ramulus), and Da Huang (Rhei Radix et Rhizoma) should not be used indiscriminately. It is appropriate to tonify Qi while releasing the exterior, and nourish Blood while clearing Heat.
Chen Liangfu said: During pregnancy, consumption of raw and cold foods impairs the Spleen and Stomach's ability to digest and transform, causing pain in the heart and abdomen. If the disease involves the Blood aspect, the stool will be red; if it involves the Qi aspect, it will be white. If both Qi and Blood are diseased, red and white will be mixed. If Heat invades the Large Intestine and Blood deficiency is present, bloody dysentery (Xue Li) results.
Hu Xianweng said: A pregnant woman suffered from persistent dysentery. Her pulse was deficient and slippery, with a choppy quality at both Guan positions. This was due to disharmony of the Fetal Qi, with Ministerial Fire flaming upward causing Heat. It resembled dysentery but was not true dysentery. Use Huang Qin (Scutellariae Radix) and Bai Zhu (Atractylodis Macrocephalae Rhizoma) to secure the fetus, and Si Wu Tang (Four Substances Decoction) with Sheng Di Huang (Rehmanniae Radix) to regulate Blood. After several doses, she became stable.