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Answer: Leukorrhea (dai xia) arises from excessive labor and injury, damaging the menstrual blood, leading to a deficiency of the body's constitution and susceptibility to cold pathogens. Wind-cold enters the uterus collateral network (bao luo), struggling with the blood to form this condition.

Various medical texts refer to "thirty-six leukorrheal diseases" as comprising twelve types of discharge (zheng), nine types of pain (tong), seven types of harm (hai), five types of injury (shang), and three types of obstruction/consolidation (gu).

The twelve types of discharge refer to the abnormal substances discharged: First, like paste; second, green in color; third, purple in color; fourth, like red skin; fifth, like pus crusts; sixth, like bean juice; seventh, like mallow soup; eighth, like coagulated blood; ninth, like dark blood, resembling water; tenth, like rice washings; eleventh, like prolonged menstrual dripping (yue huan); twelfth, irregular menstrual cycles failing to arrive on time.

The nine types of pain are: First, pain and injury in the vagina; second, dripping pain in the vagina; third, stinging pain during urination; fourth, cold pain; fifth, abdominal pain during menstruation; sixth, distension and pain due to qi stagnation; seventh, sweating accompanied by itching/biting pain in the vagina as if bitten by insects; eighth, pain in the skin under the hypochondrium; ninth, lower back pain.

The seven types of harm refer to: First, hindering food intake (harm to eating); second, hindering tolerance to cold (harm to cold); third, hindering qi movement (harm to qi); fourth, hindering physical labor (harm to labor); fifth, hindering sexual intercourse (harm to intercourse); sixth, hindering pregnancy (harm to conception); seventh, hindering sleep (harm to sleep).

The five types of injury are: First, rumbling abdominal pain; second, alternating cold and hot pain in the vagina; third, urgent and difficult painful urination; fourth, numbness and insensitivity of the zang organs; fifth, misalignment of the cervical os (zi men) pulling into the back pain.

The three types of consolidation (in some editions, the character 'yin' is written as 'gu'): The first is amenorrhea or blocked menstruation. The remaining two types of consolidation are missing from the text. The *San Yin Fang* discusses that the so-called three consolidations manifest as emaciation without muscle growth, infertility, and blocked menstruation. Although the names differ, they are all blood disorders. They mostly arise from neglecting the regulation of meridians and collaterals, improper postpartum care, internal emotional disturbances (seven emotions), external contraction of six exogenous pathogens, imbalance of yin and yang, improper work and rest, and consumption of raw and cold foods/drinks. This leads to disharmony between Ying (nutritive) and Wei (defensive) qi, interference between new and old blood, leakage of turbid敗败 material along the meridians, condensation into masses (jia), flow of foul matter, causing pain, damage, and chronic stubborn diseases. Initially slight as autumn down, once the disease forms, it is heavy as a mountain. As the ancients said, women's diseases are ten times harder to treat than men's. Zhang Zhongjing's description of thirty-six kinds of diseases attributes them all to cold-heat and labor-damage of the uterus (zi zang), accompanied by leukorrhea originating internally from the vagina. The categories are mixed and differ from other medical texts. However, Zhang Zhongjing's principles are profound and mysterious, not understandable to those with shallow knowledge. It is feared that although the text differs, the underlying principle is the same.

Yang Qi Huo Xue Dan (Nourishing Qi and Invigorating Blood Pill): Treats labor-damage to the Chong and Ren meridians, and abnormal colored leukorrhea.
Mugwort Leaf (Ai Ye, 艾叶) (stir-fried until charred, fine powder, 5 liang), Dried Ginger (Gan Jiang, 干姜) (processed, fine powder, 2 liang).
Take the above two ingredients, add 2.5 sheng of good vinegar, 2 sheng of clear wine (without ash residue), and 1 sheng of fresh ginger juice. Mix with the mugwort powder, slowly simmer in a silver vessel until it becomes a paste. Then add the following powdered herbs:
Aconite Root (Fu Zi, 附子), White Peony Root (Bai Shao, 白芍), Atractylodes Macrocephala Rhizome (Bai Zhu, 白术), Red Pepper Seeds (Jiao Hong, 椒红) (each 3.5 liang), Szechwan Lovage Rhizome (Chuan Xiong, 川芎), Angelica Sinensis Root (Dang Gui, 当归), Ginseng Radix (Ren Shen, 人参), Schisandra Berry (Wu Wei Zi, 五味子), Morinda Officinalis Root (Zi Ba Ji, 紫巴戟) (decored, stir-fried with glutinous rice, each 2 liang).
Grind all into fine powder, mix with the previous paste, and add 3.5 liang of well-roasted wheat flour. Knead uniformly into pills. Pound in a mortar and pestle for one thousand strikes. Shape into pills the size of paulownia seeds. Take 50 pills per dose, with warm wine or rice drink, before meals.

Zi Gui Wan (Purple Cinnamon Pill): Tonifies the Sea of Blood, treats deficiency of Qi in the Chong and Ren meridians, irregular menstruation (varying amounts), lower back pain, cold abdomen, leukorrhea, and metrorrhagia/metrostaxis (beng lou).
Hematitum (Yu Yu Liang, 禹余粮) (calcined, quenched in vinegar seven times, 3 liang), Longbone (Long Gu, 龙骨), Mugwort Leaf (Ai Ye, 艾叶) (stir-fried with vinegar), Oyster Shell (Mu Li, 牡蛎), Kaolinite (Chi Shi Zhi, 赤石脂), Sanguisorba Root (Di Yu, 地榆) (each 2 liang), Magnolia Bark (Hou Po, 厚朴), Moutan Cortex (Mu Dan Pi, 牡丹皮), Donkey-hide Gelatin (E Jiao, 阿胶) (stir-fried with clamshell powder), Angelica Sinensis Root (Dang Gui, 当归), Angelica Dahurica Root (Bai Zhi, 白芷), Evodia Fruit (Wu Zhu Yu, 吴茱萸) (washed seven times in hot water), Cinnamon Twig (Rou Gui, 肉桂) (each 1 liang), Aconite Root (Fu Zi, 附子) (0.5 liang).
Grind all into fine powder, use wheat paste to make pills the size of paulownia seeds. Take 30 pills per dose, with strong decoction of mugwort and vinegar tea, on an empty stomach. For regular use.