妊娠腰痛，多属劳力。盖胞系于肾，劳力任重，致伤胞系，则腰必痛，甚则胞系欲脱，多至小产。故
宜安胎为主，胎安而痛自愈，痛愈而胎能安。若素安逸而腰痛，必房事不节，致伤胞系也。
脉缓，遇天阴、或久坐而痛者，湿热也。腰重如带物而冷者，寒
湿也。脉大而痛不已者，肾虚也。脉涩而日轻夜重者，气血凝滞
也。脉浮者，风邪所乘；脉实者，闪挫也。临月腰痛如脱肾者，将产也。
有妊妇月信不绝而胎不损，问产科熊宗古，答曰∶妇人血盛气衰，其人治肥，凡既妊之后，月信常来，而胎不动。
若便以漏胎治之则胎必堕。若不作漏胎治，其胎未必堕，今推宗古人之言，诚有旨也。巢氏云∶妇人有子之后，经血蓄
以养胎矣。有妊而月信每至，亦未必因血盛也。此因荣经有风，则经血喜动，以风胜故也。荣经既为风所胜，则所下者，
非养胎之血，若作漏胎治之，服保养补胎药，胎本不损，强以药滋之，是助其风行水动之势，其胎真堕矣。若知荣经有
风之理，专以一药治风，经信可止，或不服药，胎亦无恙，然亦有胎本不固，因房室不节，先漏而后堕者，须作漏胎治
之。《千金方》治妊娠下血不止，名曰漏胎，血尽子死，用生地八两，渍酒捣汁，服之无时。（张）秘授保胎神效丸一方，
药虽甚灵，但内有红花、没药，未解其意，观宗古之论，始悟立方之妙。今具于后，保产者珍之。
妊娠漏胎，此由冲任脉虚，不能约制手太阳、少阴之经血故也。冲任之脉为经络之海，起于胞内。
手太阳、少阴相为表里，上为乳汁，下为月水。有娠之人经水所以断者，壅之养胎也。冲任
气虚，则胞内泄不能制其经血，故月水时下名胞漏，血尽则毙。又有劳役，喜怒不节，饮食生冷，触冒
风寒，子脏为风冷所乘，气血失度，使胎不安，故也令下血也。丹溪曰∶胎漏多因于血热，然
亦有气虚血少，服凉血药而下血益甚，食少、体倦者，此脾气虚而不能摄血也，当以脉候参之。
妊妇壮实，六脉平和，饮食如故，余无所苦，但经时下者，是血气旺而养胎之余血也，不可强止，
亦不可使之行，但为和血、凉血、健脾为主，佛手散加条芩、白术、阿胶；或八珍汤加胶、艾。
Lumbago during pregnancy is mostly attributable to physical overexertion. This is because the uterus (Baogong) is connected to the Kidney; when heavy labor injures the uterine ligaments, lumbago inevitably occurs. In severe cases, the uterine ligaments may detach, often leading to miscarriage. Therefore, treatment should primarily focus on calming the fetus (An Tai). Once the fetus is stabilized, the pain will subside spontaneously; once the pain subsides, the fetus is more easily secured. If a woman who usually leads an sedentary life experiences lumbago, it must be due to unregulated sexual intercourse injuring the uterine ligaments.
A slow pulse (Mai Huan), with pain worsening on cloudy days or after prolonged sitting, indicates Damp-Heat. A sensation of heaviness in the lower back as if bound by objects, accompanied by coldness, indicates Cold-Damp. A large pulse (Mai Da) with unremitting pain indicates Kidney Deficiency. A choppy pulse (Mai Se) with symptoms lighter during the day and heavier at night indicates Qi and Blood Stagnation. A floating pulse (Mai Fu) indicates invasion by Wind Pathogen; a excess pulse (Mai Shi) indicates sprain or trauma. Lumbago resembling the sensation of the Kidneys falling out near term indicates impending labor.
A pregnant woman whose menstruation continued without fetal damage consulted Obstetrician Xiong Zonggu. He replied: "Women with abundant Blood and deficient Qi, especially those fond of rich foods, often continue to menstruate after conception without disturbing the fetus. If treated as threatened abortion (Lou Tai), the fetus will likely abort. If not treated as threatened abortion, the fetus may remain intact. Xiong Zonggu's words are indeed profound." Chao Yuanfang stated: "After conception, menstrual blood is retained to nourish the fetus. Menstruation continuing during pregnancy is not necessarily due to abundant Blood. It is because Wind affects the Ying (Nutritive) Meridian, causing menstrual blood to move freely due to the dominance of Wind. Since the Ying Meridian is dominated by Wind, the discharged blood is not that which nourishes the fetus. Treating this as threatened abortion and administering tonifying herbs would strengthen the momentum of Wind moving Water, truly causing abortion. Understanding the principle of Wind in the Ying Meridian, treating only with one herb to dispel Wind can stop menstruation; even without medication, the fetus remains safe. However, there are cases where the fetus is inherently unstable, leaking blood first due to unregulated sexual intercourse before aborting; these must be treated as threatened abortion." *Qianjin Fang* treats persistent bleeding during pregnancy, named Lou Tai, where exhaustion of blood leads to fetal death, using eight taels of Sheng Di Huang (Rehmanniae Radix), soaked in wine and crushed for juice, taken at any time. The secret formula Ba Tai Shen Xiao Wan provided by Zhang contains Hong Hua (Carthami Flos) and Mo Yao (Myrrha), which was initially puzzling. Only after reading Xiong Zonggu's discussion did I understand the brilliance of this prescription. It is listed below for those engaged in obstetrics to cherish.
Threatened abortion (Lou Tai) during pregnancy occurs because the Chong and Ren Mai (Penetrating and Conception Vessels) are deficient and cannot control the menstrual blood of the Hand-Taiyang and Hand-Shaoyin meridians. The Chong and Ren Mai are the sea of meridians, originating from within the uterus. The Hand-Taiyang and Hand-Shaoyin meridians are exterior-interior pairs; their qi transforms upward into milk and downward into menstruation. During pregnancy, menstruation stops because blood is congested to nourish the fetus. When Qi of the Chong and Ren is deficient, internal leakage occurs, failing to restrain menstrual blood, resulting in monthly discharge known as Bao Lou (Uterine Leakage); if blood is exhausted, death ensues. Other causes include overwork, emotional irregularities, consumption of raw/cold foods, and exposure to Wind-Cold. When the Zi Zang (Uterus) is invaded by Wind-Cold, Qi and Blood become disordered, unsettling the fetus and causing bleeding. Zhu Danxi said: "Threatened abortion is mostly due to Blood Heat. However, in cases of Qi deficiency and Blood insufficiency, administering Cooling-Blood herbs may worsen bleeding. In patients with poor appetite and fatigue, this indicates Spleen Qi deficiency failing to contain blood; pulse diagnosis should be used for reference." For a robust pregnant woman with harmonious six pulses, normal diet, and no other discomfort, but with occasional light bleeding, this is surplus Blood and Qi nourishing the fetus. It should not be forcibly stopped nor allowed to flow excessively. Treatment should focus on Harmonizing Blood, Cooling Blood, and Strengthening the Spleen. Formula Fo Shou San plus Tiao Qin (Scutellariae Radix), Bai Zhu (Atractylodis Macrocephalae Rhizoma), and E Jiao (Colla Corii Asini); or Ba Zhen Tang plus E Jiao and Ai Ye (Artemisiae Argyi Folium).