前阴所过之脉有二∶一曰肝，二曰督脉。《经》曰∶足厥阴之脉入毛中，过阴器，抵少腹。是肝脉所过也。督脉起于
小腹以下骨中央，女子系廷孔循阴器，男子循茎下至纂，与女子相等。是督脉所过也。
妇人阴肿者，有因胞络虚损，风冷客之，与血气相搏而肿者；有因郁怒伤损肝脾者；有因房劳过度，湿热下流者；
有欲胜而热甚生虫，以致肿痒并作者。皆宜戒房室而速治之，否则邪气渐盛，阴户溃烂不收矣。若气血虚弱，补中汤举
而升之；肝经湿热，龙胆泻肝汤渗而清之；肝脾郁怒，元气下陷，湿热壅滞，朝用归脾汤加升柴，解郁结、补脾气，夕
用加味逍遥散，清肝火、生肝血，除热去湿，至于阴痒阴疮，多属虫蚀所为，始因湿热，故生三虫在肠胃间，因脏虚乃
动。其虫侵蚀阴中精华，故时作痒，甚则痒痛不已，溃烂成疮。在室女、寡妇、尼姑多犯之。因情想不遂，以致精血凝
滞，酿成湿热，久而不散，遂成三虫，痒不可忍，深入脏腑即死，令人发热恶寒，与痨相似。亦有房室过伤，以致热壅，
肿痒内痛，外为便毒，莫不由欲事伤损肝肾，肾阴亏而肝火旺，木郁思达，肝经郁滞之火走空窍而下注为痒为虫。当用
龙胆泻肝汤，逍遥散，以主其内，外用蛇床子煎汤熏洗，专以桃仁研膏和雄黄末，鸡肝，研饼纳阴中，以制其虫。若肢
体倦怠，阴中闷痒，小便赤涩者，归脾汤加山栀、白术、甘草、丹皮，若徒以湿热为事，燥湿清热，则气血日衰，所害
不止阴痒矣。
妇人阴冷，因劳伤子脏，风冷客之。若小便涩滞，小腹痞痛，龙胆泻肝汤；若小便澄清，饮食少思，大便不实，治
以八味丸。八味丸治血弱不能荣养脏腑，津液枯涩，寒客子脏阴冷者甚效。
阴挺下脱，牵引腰腹膨痛者，或因胞络伤损，或因子脏虚冷，或犯非理房事，或因分娩用力所致，当以升补元气为
主。若肝脾郁结，气虚下陷，补中汤；若肝火湿热，小便赤涩，龙肝汤。有阴中突出如菌，四围肿痛，便数，晡热，似
痒似痛，小便重坠，此肝火湿热而肿痛，脾虚下陷而重坠也。先以补中汤加山栀、茯苓、青皮，以清肝火，升脾气，更
以加味归脾汤调理脾郁。外以生猪油和藜芦末涂之而收。新室嫁孔痛，宜舒郁和血，四物加香附、红花。
有交接出血者，此肝火太旺而疏泄过度，且肝虚不能藏血，脾虚不能摄血也，宜补中及归脾二汤，消息用之。若六
脉俱洪者，此肾阴虚而不能闭藏也，宜六味汤加麦冬，五味主之。
《金匮》云∶胃气下泄，阴吹而正喧，此谷气即不能上升清道，复不能循经下走后阴，阴阳乖辟，
如肠交之义是也。甚或簌簌有声，如后阴之失气状，宜补中汤加五味子主之。
前阴部位经过的经脉有两条：一是肝经，二是督脉。《黄帝内经》说：足厥阴肝经进入阴毛中，经过生殖器，抵达小腹。这是肝经所经过的路径。督脉起于小腹以下骨中央，女子联系廷孔（指尿道口），沿着生殖器前行；男子沿着阴茎下行至会阴，与女子的路径相等。这是督脉所经过的路径。
妇人外阴肿胀，有的因为胞络（子宫及其脉络）虚损，风冷之邪侵袭，与血气相互搏结而导致肿胀；有的因为郁怒损伤肝脾；有的因为房劳过度，湿热下注；有的因为欲望强烈而热盛生虫，导致肿胀和瘙痒同时发作。这些情况都应当禁止房事并迅速治疗，否则邪气逐渐强盛，阴户溃烂无法愈合。如果气血虚弱，用补中益气汤提升升举；如果是肝经湿热，用龙胆泻肝汤渗利清泄；如果是肝脾郁怒、元气下陷、湿热壅滞，早晨服用归脾汤加升麻、柴胡，以解郁结、补脾气，晚上服用加味逍遥散，以清肝火、生肝血，除热去湿。至于阴痒和阴疮，多属于虫蚀所致，起初是因为湿热，所以在肠胃间生出三种寄生虫，因为脏腑虚弱而活动。这些虫子侵蚀阴中的精华，所以时常发痒，严重时痒痛不止，溃烂成疮。未婚女子、寡妇、尼姑多患此病。因为情欲不遂，导致精血凝滞，酿成湿热，久聚不散，遂形成三虫，痒得难以忍受，深入脏腑就会死亡，使人发热恶寒，症状类似痨病（消耗性疾病）。也有因为房事过度损伤，导致热邪壅盛，肿胀瘙痒内部疼痛，外部表现为便毒（腹股沟淋巴结炎等），没有不是由房事损伤肝肾，肾阴亏虚而肝火旺盛，木郁需疏达，肝经郁滞之火走窜空窍而下注，导致瘙痒和生虫。应当使用龙胆泻肝汤、逍遥散内服，外用蛇床子煎汤熏洗，专门用桃仁研膏混合雄黄末、鸡肝，制成饼状纳入阴道中，以制约虫子。如果肢体倦怠，阴中闷痒，小便赤涩，用归脾汤加山栀、白术、甘草、丹皮。如果只专注于清热燥湿，那么气血日渐衰弱，危害不仅仅在于阴痒。
妇人外阴寒冷，因为劳伤子脏（子宫），风冷之邪侵袭。如果小便涩滞，小腹痞满疼痛，用龙胆泻肝汤；如果小便清澈，饮食减少，大便不成形，用八味丸治疗。八味丸治疗血弱不能荣养脏腑，津液枯涩，寒邪客于子脏导致阴冷的情况非常有效。
阴挺下脱（子宫脱垂或阴道壁膨出），牵引腰腹部胀痛，可能是因为胞络损伤，或者因为子脏虚冷，或者犯非理房事，或者因为分娩用力所致，应当以升提补益元气为主。如果肝脾郁结，气虚下陷，用补中益气汤；如果肝火湿热，小便赤涩，用龙胆泻肝汤。有阴中突出如菌状，四周肿痛，尿频，午后发热，似痒似痛，小便重坠感，这是肝火湿热导致肿痛，脾虚下陷导致重坠。先用补中益气汤加山栀、茯苓、青皮，以清肝火、升脾气，再用加味归脾汤调理脾郁。外用生猪油和藜芦末涂抹以收敛。新婚嫁入后孔道疼痛，应当舒郁和血，用四物汤加香附、红花。
有性交出血的，这是肝火太旺而疏泄过度，且肝虚不能藏血，脾虚不能摄血，宜用补中益气汤和归脾汤，斟酌使用。如果六脉都洪大，这是肾阴虚而不能闭藏，宜用六味地黄汤加麦冬、五味子主治。
《金匮要略》说：胃气下泄，阴吹（阴道排气）而且声音喧响，这是因为谷气不能上升进入清道，又不能循经向下走后阴，阴阳乖违背离，就像肠交的意思一样。甚至簌簌有声，像后阴放屁的样子，宜用补中益气汤加五味子主治。
The meridians passing through the anterior yin region are two: one is the Liver Meridian, and the other is the Du Meridian (Governing Vessel). The *Classic* states: "The Foot-Jueyin Liver Meridian enters the pubic hair area, passes through the genitalia, and reaches the lower abdomen." This is the path of the Liver Meridian. The Du Meridian originates from the central bone below the lower abdomen; in women, it connects to the Ting Kong (urethral opening) and runs along the genitalia; in men, it runs down the penis to the perineum, equal in length to that of women. This is the path of the Du Meridian.
In women, vulvar swelling may be caused by deficiency and damage to the Bao Luo (uterine collaterals), where wind-cold pathogens invade and contend with Qi and Blood, resulting in swelling; or by depression and anger damaging the Liver and Spleen; or by excessive sexual activity leading to downward flow of damp-heat; or by intense desire causing heat to generate parasites, resulting in simultaneous swelling and itching. All such conditions require abstention from sexual intercourse and prompt treatment; otherwise, pathogens will gradually intensify, leading to ulceration and non-healing of the vaginal introitus. If Qi and Blood are deficient, use Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) to lift and raise. If there is damp-heat in the Liver Meridian, use Longdan Xiegan Tang (Gentian Liver-Draining Decoction) to drain and clear. If there is Liver-Spleen depression and anger, sinking of Yuan Qi, and stagnation of damp-heat, administer Guipi Tang (Restore the Spleen Decoction) plus Shengma (Cimicifugae Rhizoma) and Chaihu (Bupleuri Radix) in the morning to resolve depression and tonify Spleen Qi, and Jiawei Xiaoyao San (Modified Free and Easy Wanderer Powder) in the evening to clear Liver Fire, generate Liver Blood, remove heat, and eliminate dampness. Regarding vulvar pruritus and ulcers, these mostly belong to parasitic erosion, initially caused by damp-heat generating three types of parasites in the intestines and stomach, which become active due to Zang organ deficiency. These parasites erode the essence of the vagina, causing intermittent itching; severely, they cause unceasing itch and pain, ulcerating into sores. Virgins, widows, and nuns are prone to this. Unfulfilled emotional desires lead to coagulation and stagnation of Jing and Blood, brewing damp-heat that persists for a long time, forming parasites causing unbearable itching; if they penetrate deep into the Zang organs, death ensues, presenting with fever and aversion to cold, resembling tuberculosis (Lao Bing). Some cases result from excessive sexual injury causing heat stagnation, swelling, itching, internal pain, and external presentation as Bi Du (groin abscess/lymphadenitis). None are not caused by sexual injury damaging the Kidney and Liver, where Kidney Yin deficiency leads to hyperactive Liver Fire. Wood depression requires soothing; stagnant fire in the Liver Meridian flows through hollow orifices downward, causing itching and parasite formation. Use Longdan Xiegan Tang and Xiaoyao San internally. Externally, fumigate and wash with Shechuangzi (Cnidii Fructus) decoction. Specifically, grind Taoren (Persicae Semen) into paste, mix with Xionghuang (Realgar) powder and Ji Gan (Galli Hepatis), form into cakes, and insert into the vagina to control parasites. If limbs are fatigued, vaginal stuffiness and itching occur, and urination is red and scanty, use Guipi Tang plus Zhizi (Gardeniae Fructus), Baizhu (Atractylodis Macrocephalae Rhizoma), Gancao (Glycyrrhizae Radix et Rhizoma), and Danpi (Moutan Cortex). If one merely focuses on drying dampness and clearing heat, Qi and Blood will daily decline, and the harm will extend beyond mere pruritus.
Vulvar coldness in women is caused by labor injuring the Zi Zang (uterus), allowing wind-cold to invade. If urination is obstructed and the lower abdomen is distended and painful, use Longdan Xiegan Tang. If urine is clear, appetite is poor, and stools are loose, treat with Bawei Wan (Eight-Ingredient Pill). Bawei Wan is highly effective for blood deficiency failing to nourish Zang organs, dry and scanty fluids, and cold invading the uterus causing vulvar coldness.
Uterine prolapse (Yin Ting Xia Tuo), pulling and causing abdominal distension and pain, may be due to damage to the Bao Luo, deficiency-cold of the Zi Zang, improper sexual conduct, or strain during childbirth. The primary treatment should be lifting and tonifying Yuan Qi. If there is Liver-Spleen depression and Qi deficiency with sinking, use Buzhong Yiqi Tang. If there is Liver Fire and damp-heat with red, scanty urination, use Longdan Xiegan Tang. In cases where tissue protrudes from the vagina like a mushroom, surrounded by swelling and pain, frequent urination, afternoon fever, mixed itching and pain, and heavy sensation in urination, this is Liver Fire and damp-heat causing swelling and pain, combined with Spleen deficiency and sinking causing heaviness. First, use Buzhong Yiqi Tang plus Zhizi, Fuling (Poria), and Qingpi (Citri Reticulatae Pericarpium Viride) to clear Liver Fire and raise Spleen Qi, then use Jiawei Guipi Tang to regulate Spleen depression. Externally, apply fresh pig lard mixed with Lili powder (Veratrum nigrum) to achieve contraction. For pain in the vaginal introitus after marriage, soothe depression and harmonize Blood using Siwu Tang plus Xiangfu (Cyperi Rhizoma) and Honghua (Carthami Flos).
Intercourse-induced bleeding is caused by excessive Liver Fire leading to over-dispersal, coupled with Liver deficiency failing to store Blood and Spleen deficiency failing to control Blood. Use Buzhong Yiqi Tang and Guipi Tang, adjusting usage as needed. If all six pulses are surging, this indicates Kidney Yin deficiency failing to secure and store; use Liuwei Dihuang Tang (Six-Ingredient Pill with Rehmannia) plus Maidong (Ophiopogonis Radix) and Wuweizi (Schisandrae Fructus) as the main treatment.
The *Jingui Yaolue* states: "When Stomach Qi descends and leaks out, causing flatulence from the vagina (Yin Chui) with loud noise, it means that Grain Qi cannot ascend to the clear pathways, nor can it follow the meridians to exit through the posterior yin. This is a deviation of Yin and Yang, similar to the concept of intestinal crossing." In severe cases, there may be rustling sounds, resembling flatus from the anus. Treat with Buzhong Yiqi Tang plus Wuweizi.