经曰∶北方黑色，入通于肾，开窍于二阴。陈飞霞曰∶夫二阴者，前阴窍出小便，后阴窍出大便。又云∶前
阴主气，后阴主血。盖膀胱之津液，血所化也，由气而后能出。太阴之传送，气之运也，由血而后能润。此便溺
之流通，见气血根据附。而人之所以为生者，以其有此出入关窍耳。清阳出上窍，谓呼吸也；浊
阴出下窍，谓二便也。倘一息不运，则机息穷而死矣。故二便不通，加以腹痛气喘呕恶烦躁者，不可治也。凡二
便秘，宜八正散，外用腌脐法，蜜导煎法，则前后俱通矣。
八正散 治热聚下焦，二便不通。
木通（一钱） 滑石（一钱） 栀子仁（一钱） 车前子（一钱） 瞿麦穗（一钱） 锦纹黄（一钱）
芒硝（一钱，等分，量儿大小加减用之。）
除大黄芒硝外，将各味水煎极熟，加入大黄再煎。斟出后，再加芒硝冲服。
腌脐法 治中下二焦大小便不通。
莲须（一钱） 生姜（一钱） 淡豆豉（一钱） 食盐（一钱）
同捣烂作一饼子，烘热掩肚脐，以帛扎之，良久气通，二便自利。
蜜导煎法 治二便不通。以此通其大便，则下焦气行，而小便自导矣。
白蜜 炼至滴水成珠不散，入皂角研细末二钱，和匀，稍冷，捻如小指大一条，外以葱涎涂上，轻轻放入谷
道中，气通则便通矣。
涂蔚生曰∶用皂角水，以管注入谷道中，其大便下利，亦极迅利，较蜜导煎尤佳。又寒热结于膀胱，亦可发
生闭塞，不可不辨。
《黄帝内经》说：北方对应黑色，内通于肾，外开窍于前后二阴。陈飞霞说：所谓二阴，前阴排泄小便，后阴排泄大便。又说：前阴主司气机，后阴主司血液。大概膀胱中的津液，是由血所化生，依靠气的推动才能排出。太阴脾肺的传导功能，是气的运化作用，依靠血的滋润才能通畅。这种大小便的流通，体现了气血相互依附的关系。而人之所以能生存，正是依靠这些出入的关窍。清阳之气出于上窍，指的是呼吸；浊阴之邪出于下窍，指的是大小便。如果一口气不能运转，那么生机停止就会死亡。所以，如果大小便不通，并伴有腹痛、气喘、呕吐恶心、烦躁等症状的，属于不可治疗的危重症。凡是大小便秘结，适宜使用八正散，配合外用腌脐法、蜜导煎法，则前后二便都能通畅。
八正散 治疗热邪聚集在下焦，导致大小便不通。
木通（一钱） 滑石（一钱） 栀子仁（一钱） 车前子（一钱） 瞿麦穗（一钱） 锦纹黄（即大黄，一钱）
芒硝（一钱，各药分量相等，根据患儿年龄大小酌情加减使用。）
除大黄和芒硝外，将其他药物用水煎煮至熟透，加入大黄再煎。倒出药汁后，再加入芒硝冲服。
腌脐法 治疗中焦和下焦的大小便不通。
莲须（一钱） 生姜（一钱） 淡豆豉（一钱） 食盐（一钱）
共同捣烂做成一个饼状，加热后敷在肚脐上，用布带扎紧，过一段时间后气机通畅，大小便自然通利。
蜜导煎法 治疗大小便不通。用此法通导大便，则下焦气机运行，小便自然引导而出。
白蜜 炼至滴水成珠不散的程度，加入研细的皂角末二钱，混合均匀，稍冷却后，搓捻成如小指粗细的一条，外面涂上葱汁，轻轻放入肛门中，气机通畅则大便自通。
涂蔚生说：使用皂角水，通过导管注入肛门中，其大便下利的效果，也非常迅速，比蜜导煎法更好。另外，寒热邪气结聚于膀胱，也可能发生闭塞，这一点不可不加以辨别。
The *Yellow Emperor's Inner Canon* states: The North corresponds to the color black, internally connects with the Kidney (Shen, 肾), and externally opens into the two yin orifices (er yin, 二阴). Chen Feixia stated: Regarding the two yin orifices, the anterior orifice excretes urine, and the posterior orifice excretes feces. It is also said that the anterior orifice governs Qi (Qi, 气), while the posterior orifice governs Blood (Xue, 血). Essentially, the fluids in the Bladder (Pangguang, 膀胱) are transformed from Blood, and can be expelled only through the propulsion of Qi. The transportation function of the Taiyin (Spleen/Lung) is the movement of Qi, which becomes moistened and unobstructed by Blood. The smooth flow of stool and urine demonstrates the mutual attachment of Qi and Blood. Human life depends on these orifices for entry and exit. Clear Yang (Qingyang, 清阳) exits through the upper orifices, referring to respiration; Turbid Yin (Zhuoyin, 浊阴) exits through the lower orifices, referring to defecation and urination. If even a single breath fails to circulate, vital mechanisms cease, leading to death. Therefore, if both stool and urine are obstructed, accompanied by abdominal pain, panting, vomiting, nausea, and irritability, it is considered incurable. For cases of constipation of both stool and urine, Ba Zheng San (Eight Righteousness Powder) is appropriate. Externally, applying the Umbilical Pickling Method (Yan Qi Fa, 腌脐法) and the Honey Suppository Decoction Method (Mi Dao Jian Fa, 蜜导煎法) will ensure the patency of both anterior and posterior passages.
Ba Zheng San (Eight Righteousness Powder): Treats heat accumulation in the Lower Jiao (Xiajiao, 下焦), causing obstruction of both stool and urine.
Tong Cao (Akebiae Caulis, 木通) (1 qian)
Hua Shi (Talcum, 滑石) (1 qian)
Zhi Zi Ren (Gardeniae Fructus, 栀子仁) (1 qian)
Che Qian Zi (Plantaginis Semen, 车前子) (1 qian)
Qu Mai (Dianthi Herba, 瞿麦穗) (1 qian)
Jin Wen Huang (Rhei Radix et Rhizoma, 锦纹黄 - specifically Dahuang) (1 qian)
Mang Xiao (Natrii Sulfas, 芒硝) (1 qian, equal parts, dosage adjusted according to the child's age).
Except for Dahuang and Mang Xiao, decoct all other ingredients in water until thoroughly cooked. Add Dahuang and simmer again. Strain the liquid, then add Mang Xiao to dissolve and take orally.
Umbilical Pickling Method (Yan Qi Fa): Treats obstruction of both stool and urine due to pathology in the Middle and Lower Jiao.
Lian Xu (Nelumbinis Stamen, 莲须) (1 qian)
Sheng Jiang (Zingiberis Rhizoma Recens, 生姜) (1 qian)
Dan Dou Chi (Sojae Semnis Preparatum, 淡豆豉) (1 qian)
Shi Yan (Halitum, 食盐) (1 qian)
Pound all ingredients together into a paste, form into a cake, warm it, and apply it to the umbilicus. Secure with a cloth band. After some time, when Qi circulation resumes, stool and urine will naturally pass.
Honey Suppository Decoction Method (Mi Dao Jian Fa): Treats obstruction of both stool and urine. By unblocking the large intestine, the Qi in the Lower Jiao moves, thereby facilitating the passage of urine.
Bai Mi (Mel, 白蜜): Refine until it forms beads that do not disperse when dropped in water. Mix with 2 qian of finely powdered Zao Jiao (Gleditsiae Sinensis Fructus, 皂角). Blend evenly. Once slightly cooled, shape into a cylinder the thickness of a little finger. Coat the exterior with Scallion Juice (Cong Xin, 葱涎) and gently insert into the anus (Gu Dao, 谷道). When Qi circulates, stool will pass.
Tu Weisheng stated: Using Zao Jiao water injected into the anus via a tube produces rapid evacuation of stool, which is even more effective than the Honey Suppository Method. Furthermore, the binding of Cold and Heat pathogens in the Bladder can also cause obstruction; this distinction must not be overlooked.