产后月水不通者，不必药也。妇人冲任之脉，为经络之海，皆起胞内，手太阳手太阴二经，上为乳
汁，下为月水。若产后去血过多，乳汁常有不通，若乳子半岁、一岁之内，月经不行，此尤常候。若半岁
左右便行，是必少壮血盛之人也。若产后一二年月经不通，无他疾苦，亦不必服通经之药，盖此或劳伤
荣卫，冲任脉虚，气血衰少耳。但服健脾胃及滋补气血之药，自然通行。若强通之，是犹揠苗者也。
产妇冲任血旺，脾胃气壮，饮食调匀，则乳足而浓，以生化之源旺也。若脾胃气
弱，饮食少进，冲任素亏，则乳少而薄，所乳之子，亦怯弱而多病，其乳以浓白光彩，
入盏中上而莹然如玉为上，黄色清薄为下，不可哺儿。乳母宜择肥瘦适中，无病经调，
善食者佳。太肥则多痰，太瘦则多火，儿饮其乳，亦复如是。如一儿昏睡，竟日不醒，
举家惊惶，求医投药罔效，一高医诊之曰∶此儿中酒，得毋乳母曾痛饮乎？询之果然，
停药而醒，可见其利害相关明矣。然时珍
曰∶人乳无定性，随饮食性气而变，故饮食调摄，乳母不可不慎也。若乳汁不行有二，
有气血盛而壅闭不行，有气血虚而燥涩不行，虚者补之，如十全八珍之类是也。盛者
疏之，如麦冬、栝蒌仁、天花粉、人参、葵子、猪胰、木通、漏芦、猪蹄之类，煮食是
也。其有乳汁自出者。若胃气虚而不能敛摄津液者，宜补胃气以敛之。若气血大虚，气
不卫外，血不荣里，而为妄泄者，宜调补荣卫以止之。若未产而乳自出，谓之乳泣，生
子多不育。若产妇劳役，乳汁涌下，此阳气虚而厥也，独参汤主之。
产后月经不通的情况，不需要用药治疗。妇女的冲脉和任脉，是经络之海，都起于胞宫内部。手太阳经和手太阴经，上行化为乳汁，下行化为月经。如果产后失血过多，乳汁常常不通畅；如果在哺乳半岁到一岁期间，月经没有来潮，这更是常见的现象。如果断奶半年左右月经就恢复，那一定是身体强壮、气血旺盛的人。如果产后一两年月经仍不通，但没有其他病痛，也不必服用通经的药物，因为这可能是由于劳累损伤了营卫之气，导致冲任脉虚弱，气血衰少所致。只需服用健脾胃及滋补气血的药物，月经自然会通畅。如果强行通经，这就好比拔苗助长一样有害。
产妇若冲任二脉气血旺盛，脾胃之气强健，饮食调节得当，那么乳汁就会充足且浓稠，这是因为生化之源旺盛的缘故。如果脾胃气弱，进食减少，冲任素来亏虚，那么乳汁就会稀少且稀薄，所哺育的孩子也会怯弱多病。判断乳汁优劣的标准是：乳汁呈浓白色且有光泽，倒入盏中清澈如玉的为上品；黄色清稀的为下品，不可用来哺育婴儿。乳母宜选择体型肥瘦适中、无疾病、月经规律、食欲好的人为佳。过于肥胖则多痰湿，过于消瘦则多内火，婴儿饮用这样的乳汁，也会出现相应的状况。例如曾有一个婴儿昏睡，整天不醒，全家惊慌失措，求医服药均无效。一位高明的大夫诊断说：“这个婴儿中了酒毒，莫非乳母曾经痛饮过？”询问后果然如此，停药后婴儿便醒了，由此可见利害关联非常明显。然而李时珍说：“人乳没有固定的性质，会随着饮食的性质而改变，所以饮食调理，乳母不可不谨慎。”
关于乳汁不行的情况有两种：一种是气血旺盛但壅滞闭塞导致不行，另一种是气血虚弱导致干燥涩滞而不行。对于虚证应当补益，如十全大补汤、八珍汤之类的方剂。对于实证应当疏通，如麦冬、瓜蒌仁、天花粉、人参、冬葵子、猪胰、木通、漏芦、猪蹄等，煮食即可。至于乳汁自行流出的情况：如果是胃气虚弱不能收敛津液导致的，应当补益胃气以收敛之。如果是气血大虚，气不能固护体表，血不能荣养体内，导致妄自泄出的，应当调和补益营卫以止住它。如果在未分娩前乳汁就自行流出，称为“乳泣”，生下的孩子大多难以养活。如果产妇因过度劳累导致乳汁涌出，这是阳气虚弱导致的厥逆证，独参汤主治。
In cases of amenorrhea (absence of menstruation) after childbirth, medication is not necessary. The Chong Mai (Penetrating Vessel) and Ren Mai (Conception Vessel) of women are the sea of meridians and collaterals, both originating from within the Bao Gong (Uterus). The Hand-Taiyang and Hand-Taiyin meridians transform into Ru Zhi (Breast Milk) upwards and Yue Shui (Menstrual Blood) downwards. If excessive blood loss occurs postpartum, breast milk may often be obstructed; if menstruation does not occur within six months to one year of nursing, this is a common occurrence. If menstruation resumes around six months, it indicates a person who is young, vigorous, and has abundant blood and Qi. If menstruation remains absent for one or two years postpartum without other discomforts, there is no need to take medicines that promote menstruation, as this may be due to fatigue damaging Ying Wei (Defensive and Nutritious Qi), leading to deficiency of the Chong and Ren vessels and a decline in blood and Qi. Simply taking herbs that strengthen the Spleen and Stomach and tonify blood and Qi will naturally restore flow. Forcing menstruation would be akin to pulling shoots to help them grow.
If a postpartum woman has abundant blood and Qi in the Chong and Ren vessels, strong Qi in the Spleen and Stomach, and balanced diet, her breast milk will be sufficient and thick because the source of bio-transformation is robust. If Spleen and Stomach Qi is weak, food intake is low, and the Chong and Ren vessels are inherently deficient, the breast milk will be scanty and thin, and the nursed infant will also be frail and prone to illness. High-quality breast milk should be thick, white, and lustrous, appearing clear and jade-like when poured into a cup; yellow, thin, and watery milk is inferior and unsuitable for nursing. A lactating mother should ideally be chosen for having a moderate body type, being free from disease, having regular menstruation, and having a good appetite. Being too fat leads to excessive Phlegm, while being too thin leads to internal Fire; if an infant drinks such milk, similar conditions may arise. For instance, once an infant fell into a deep sleep and did not wake all day, causing family panic. Medical treatment was ineffective until a skilled physician diagnosed: "This infant has alcohol intoxication; did the lactating mother drink heavily?" Upon inquiry, this was confirmed. After stopping the medication (and presumably adjusting the mother's diet), the infant woke up, clearly demonstrating the significant interconnection. However, Li Shizhen stated: "Human breast milk has no fixed nature; it changes according to the properties of food and drink consumed. Therefore, dietary regulation requires utmost caution by the lactating mother."
There are two types of breast milk obstruction: one where abundant blood and Qi cause stagnation and blockage, preventing flow; and another where deficient blood and Qi cause dryness and涩滞 (astringency/stasis), preventing flow. For deficiency, tonification is used, such as with Shi Quan Da Bu Tang (Ten Significant Great Tonifying Decoction) or Ba Zhen Tang (Eight Treasures Decoction). For excess, unblocking is used, such as consuming cooked Mai Dong (Ophiopogonis Radix), Gua Lou Ren (Trichosanthis Semen), Tian Hua Fen (Trichosanthis Radix), Ren Shen (Ginseng Radix), Kui Zi (Abutilonis Fructus), Zhu Yi (Porcinis Pancreas), Mu Tong (Akebiae Caulis), Lou Lu (Cimicifugae Rhizoma), and Zhu Ti (Suis Corium), prepared as food. Regarding spontaneous leakage of breast milk: if caused by weak Stomach Qi failing to consolidate fluids, tonifying Stomach Qi to consolidate is appropriate. If caused by severe deficiency of blood and Qi, where Qi fails to protect the exterior and Blood fails to nourish the interior, leading to reckless discharge, regulating and tonifying Ying and Wei is appropriate to stop it. If breast milk leaks before delivery, it is called Ru Qi (Weeping Breast), and children born under such circumstances often fail to survive. If a postpartum woman experiences gushing breast milk due to overwork, this is a Jue syndrome (reversal condition) caused by Yang Qi deficiency, treated primarily with Du Shen Tang (Single Ginseng Decoction).