夫小肠泄者，溲而便脓血，少腹痛。宜寒剂夺之，淡剂、甘剂分之。
夫里急后重，数至圊而不能便。先宜清剂、寒剂夺之，后以淡剂、甘剂分之。或茎中痛，亦同。
飧泄∶春伤于风，夏必飧泄。暮食不化，亦成飧泄。风而飧泄者，先宜发剂，
次宜淡剂、甘剂分剂之类。
洞泄∶春伤于风，邪气留连，乃为洞泄，泄下褐色。治法同上。又宜灸水分穴。湿气在下，又宜以苦剂越之。
洞泄寒中∶洞泄寒中，俗呼曰休息痢。洞泄，属甲乙风木，可灸气海、水分、三里，慎勿服
峻热之药。小便涩则生；足肿、腹胀满者，死于庚辛之日；如尸臭者不治。
霍乱∶吐泻水谷不化，阴阳错乱。可服淡剂，调以冰水，令顿服之则愈。
注下∶火气太过，宜凉剂，又宜淡剂，调冰水，令顿服之则愈。此为暴下不止也。
肿蛊∶三焦闭涩，水道不行，水满皮肤，身体痞肿。宜越剂、发剂、夺剂。
胀∶浊气在上不散，可服木香槟榔丸、青
属大肠为浊气逆，肺金为清气逆，气化则愈矣。
肠鸣∶燥湿相抟为肠鸣；中有湿，亦为肠鸣；火湿相攻，亦为肠鸣。治法同上，治之大效。
支满 溏∶上满而后泄，下泄而后复上满。治法同上。久则反寒，治法同寒中。如 溏而
肠寒者，亦斯义。风湿亦有支满者。
肠 ∶大、小便脓血，治法同上。又宜不二丸、地榆散、驻车丸及车前子等药，次宜淡
剂、甘剂、分剂之类。
脏毒∶下血，治法同上。又宜苦剂、夺剂，以苦燥之。如酒毒下血同。
大、小便血∶大、小便治法同上。血温身热者死火之成数，七日而死。如尸臭者不治。
脱肛∶大肠热甚也。用酸浆水煎三、五沸，稍热渫洗三、五度，次以苦剂坚之则愈。
广肠痛∶治法同上。又大黄牵牛丸、散，夺之法，燥涩亦同。痔漏、广肠痛、肠风下血，
皆同脏毒治法。
乳痔肠风∶必肛门左右有核。《内经》曰∶因而饱食，筋脉横解，肠 为痔。属大肠经，可服
枳壳之属。大癖生肠风，乳痔相连。
大肠泄：表现为肠鸣且剧烈疼痛。治疗上应先使用寒凉性质的药物攻逐邪气，随后使用甘缓性质的药物，以调和阴阳。
小肠泄：表现为小便时伴有脓血便，少腹部疼痛。宜用寒凉性质的药物攻逐邪气，再用淡渗利湿和甘缓性质的药物分消病势。
里急后重：表现为急于排便但频繁如厕却排不出大便。治疗上应先使用清热、寒凉性质的药物攻逐邪气，随后用淡渗利湿和甘缓性质的药物分消病势。如果伴有尿道疼痛，治疗方法也相同。
飧泄（完谷不化的腹泻）：春季感受风邪，夏季必然发生飧泄。晚上进食的食物无法消化，也会形成飧泄。因风邪导致的飧泄，治疗上应先使用发散风邪的药物，随后使用淡渗利湿和甘缓性质的药物进行分消。
洞泄（水样直下的腹泻）：春季感受风邪，邪气滞留体内，从而形成洞泄，排出褐色稀便。治疗方法同上。另外适宜艾灸水分穴。湿气在下焦，又适宜用苦味药物升散祛湿。
洞泄寒中：即洞泄伴有中焦虚寒，俗称休息痢。洞泄归属于甲乙风木之证，可以艾灸气海穴、水分穴、足三里穴，务必不要服用峻烈的热性药物。如果出现小便涩滞不通则病情加重；如果足部肿胀、腹部胀满，则在庚辛日（金旺之日）死亡；如果身体散发尸臭气味，则属不治之症。
霍乱：表现为呕吐、腹泻，食物不消化，导致阴阳之气错乱。可以服用淡渗利湿的药物，并用冰水调服，一次性顿服即可痊愈。
注下（暴注下迫的腹泻）：火气太过所致，宜用凉性药物，又宜用淡渗利湿的药物，配合冰水调服，一次性顿服即可痊愈。这属于暴注下迫不止的症状。
肿蛊（水肿鼓胀）：三焦闭塞涩滞，水道不通，水液充满皮肤，身体痞塞肿胀。适宜使用涌吐、发汗、攻逐水饮的药物。
胀：浊气停滞在上焦不散，可服用木香槟榔丸、青皮等药。若属于大肠浊气上逆，或肺金清气上逆，待气化功能恢复则痊愈。
肠鸣：燥湿相互搏结导致肠鸣；肠道中有湿邪，也会导致肠鸣；火与湿相互攻冲，也会导致肠鸣。治疗方法同上，疗效显著。
支满溏（胸胁胀满伴大便溏薄）：先感到上部胀满而后出现泄泻，下部泄泻后又重新感到上部胀满。治疗方法同上。病程久了会转为寒证，治疗方法同于寒中证。如果是肠寒导致的溏泄，也是这个道理。风湿病也有导致支满的情况。
肠澼（痢疾）：大、小便均排出脓血，治疗方法同上。另外适宜使用不二丸、地榆散、驻车丸以及车前子等药物，随后再使用淡渗利湿、甘缓和分消病势的药物。
脏毒：表现为便血，治疗方法同上。另外适宜使用苦味药物、攻逐药物，利用苦味燥湿的作用。如果是酒毒导致的便血，治疗方法相同。
大、小便血：大、小便出血的治疗方法同上。如果血液温热、身体发热，则预后不良，死于火之成数（五或十），具体为七日后死亡。如果身体散发尸臭气味，则属不治之症。
脱肛：是大肠热盛所致。用酸浆水煎煮三到五沸，稍加热后清洗肛门三到五次，随后用苦味药物收敛坚阴即可痊愈。
广肠痈（直肠脓肿/痔疮肿痛）：治疗方法同上。另外可使用大黄牵牛丸、散剂，采用攻逐的方法，干燥涩滞的情况也适用。痔漏、广肠痈、肠风下血，都按照脏毒的治疗方法处理。
乳痔肠风：必定在肛门左右有核块。《内经》说：因为饱食过度，导致筋脉松弛横解，肠道病变形成痔疮。归属于大肠经，可以服用枳壳等药物。大癖（积聚）生发肠风，乳痔与之相连。
Intestinal Drainage (Da Chang Xie): Manifests as borborygmus accompanied by severe pain. Treatment should first employ cold-natured agents to purge the pathogen, followed by sweet-natured agents to differentiate and harmonize Yin and Yang.
Small Intestine Drainage (Xiao Chang Xie): Manifests as dysuria with pus and blood in the stool, and pain in the lower abdomen. Cold-natured agents should be used to purge, followed by bland and sweet agents to dissipate the pathogenic factors.
Tenesmus (Li Ji Hou Zhong): Manifests as an urgent need to defecate but frequent trips to the toilet with inability to pass stool. Treatment should first employ clear and cold agents to purge, followed by bland and sweet agents to dissipate. If accompanied by pain in the urethra, the treatment is the same.
Sudden Diarrhea with Undigested Food (Sun Xie): Wind injury in spring leads to Sun Xie in summer. Undigested food consumed at night also results in Sun Xie. For Sun Xie caused by wind, treatment should first employ dispersing agents, followed by bland and sweet agents to differentiate and dissipate.
Cavity Diarrhea (Dong Xie): Wind injury in spring causes pathogenic factors to linger, resulting in Dong Xie with brown watery stools. The treatment method is the same as above. Additionally, moxibustion on Shuifen (CV9) acupoint is suitable. When dampness is located below, bitter agents should be used to disperse it upward.
Dong Xie with Middle Jiao Cold: Also known colloquially as Rest Dysentery. Dong Xie belongs to the Wood element of Jia-Yi wind; moxibustion can be applied to Qihai (CV6), Shuifen (CV9), and Zusanli (ST36). Harsh hot medicines must be avoided. If urine becomes astringent, the condition worsens; if feet swell and the abdomen is full, death occurs on Geng-Xin days; if the body emits a corpse-like odor, it is incurable.
Huo Luan (Cholera-like Syndrome): Manifests as vomiting and diarrhea of undigested food, causing chaos of Yin and Yang Qi. Bland agents can be taken, mixed with ice water, and administered in one dose for recovery.
Zhu Xia (Violent Diarrhea): Caused by excessive Fire Qi. Cool agents are suitable, along with bland agents mixed with ice water, administered in one dose for recovery. This refers to violent diarrhea that does not stop.
Zhong Gu (Edema and Distension): Closure and astringency of the Sanjiao (Triple Burner), failure of water pathways, water filling the skin, and body bloating and swelling. Surging (emetic), dispersing (diaphoretic), and purging agents are suitable.
Distension: Turbid Qi stagnates in the upper part and does not dissipate. Muxiang Binglang Wan (Aucklandiae and Bitter Orange Pill) and Qingpi (Green Tangerine Peel) can be taken. If it belongs to turbid Qi rebellion of the Large Intestine or clear Qi rebellion of Lung Metal, recovery occurs when Qi transformation is restored.
Borborygmus: Occurs due to the struggle between dryness and dampness; presence of dampness in the middle causes borborygmus; attack between fire and dampness also causes borborygmus. The treatment method is the same as above, with significant efficacy.
Zhi Man Tang (Fullness and Loose Stools): Upper fullness precedes diarrhea, and lower diarrhea is followed by renewed upper fullness. The treatment method is the same. Prolonged cases turn into cold syndromes, treated similarly to Middle Cold. If loose stools are due to intestinal cold, the principle applies. Rheumatic wind can also cause Zhi Man.
Chang Pi (Dysentery with Pus and Blood): Pus and blood in both large and small bowel movements. The treatment method is the same. Er Bu Wan, Diyü San, Zhuche Wan, and Cheqianzi (Plantago Seed) are suitable, followed by bland, sweet, and differentiating agents.
Zang Du (Visceral Toxin): Manifests as bloody stool. The treatment method is the same. Bitter and purging agents are suitable to dry dampness using bitterness. Bloody stool caused by alcohol toxicity is treated similarly.
Large and Small Bowel Bleeding: The treatment method is the same. If the blood is warm and the body is feverish, death ensues according to the number of Fire completion (five or ten), specifically after seven days. If the body emits a corpse-like odor, it is incurable.
Rectal Prolapse: Caused by excessive heat in the Large Intestine. Acidic spring water is boiled for three to five boils, slightly heated, and used to wash the anus three to five times. Subsequently, bitter agents are used to consolidate and cure.
Guang Chang Yong (Abscess of the Rectum): The treatment method is the same. Dahuang Qianniu Wan/San (Rhubarb and Black Mustard Pill/Powder) and purging methods are suitable; dryness and astringency are treated similarly. Hemorrhoids, fistulas, Guang Chang Yong, and Chang Feng bleeding are all treated according to the Zang Du method.
Ru Zhi Chang Feng (Breast-like Hemorrhoids and Wind): Nodules must be present on the left and right of the anus. The *Neijing* states: "Due to overeating, tendons and vessels relax transversely, leading to hemorrhoids in the intestines." It belongs to the Large Intestine Meridian; Zhiqiao (Aurantii Fructus) type herbs can be taken. Da Pi (Mass accumulation) generating Chang Feng is connected to Ru Zhi.