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Dysentery is more common in summer and autumn, though it occasionally occurs at other times. Its etiology often stems from consuming raw and cold foods such as melons and peaches during summer, leading to internal invasion by summerheat pathogen and external contraction of wind-cold. The latent pathogen seeks expulsion; some manifest as macules, rashes, or malaria, but if the pathogen forces its way into the large intestine, dysentery ensues. White dysentery involves the Qi level; yellow dysentery injures the Spleen; red dysentery involves the Blood level. When red, white, yellow, and purple colors appear together, it is called Five-Color Dysentery (Wu Se Li), which requires differentiated treatment. Previous practitioners believed that white indicates Cold and red indicates Heat, which is incorrect. Differentiating between Qi and Blood is acceptable, but differentiating strictly by Cold and Heat is inappropriate. Treatment for white dysentery should focus on regulating Qi and promoting digestion, possibly adding herbs to clear damp-heat, or using Ding Xiang (Caryophylli Flos) to warm the Spleen. Treatment for yellow dysentery should tonify the Spleen, using herbs like Chao Bai Zhu (Stir-fried Atractylodis Rhizoma) and Fu Ling (Poria), combined with agents that clear heat, promote drainage, and regulate flow. Treatment for red dysentery takes Huang Lian (Coptidis Rhizoma), Huang Qin (Scutellariae Radix), and Bai Shao (Paeoniae Radix Alba) as principal medicines, modified according to symptoms. If dysentery is accompanied by fever, headache, and aversion to wind, add exterior-releasing drugs. If associated with malaria, harmonizing methods should be used concurrently. However, if red dysentery initially presents with vomiting and inability to swallow, it is termed Jin Kou Li (Jaw-Closed Dysentery), which is the most severe due to concurrent Stomach pathology. Previous practitioners used Dui Jin San; I treat this condition by adding Ban Xia (Pinelliae Rhizoma), Chao Zhu Ru (Stir-fried Bambusae Caulis in Taenia), Yin Hua Lu (Silver Flower Dew), and Lian Rou (Nelumbinis Semen), which proves effective in many cases. For tenesmus and feeling chilly upon exposure to wind, add Fang Feng (Saposhnikoviae Radix), Ge Gen (Puerariae Lobatae Radix), Sheng Ma (Cimicifugae Rhizoma), and Chai Hu (Bupleuri Radix) to raise and lift the Clear Yang. Besides the principal medicines, essential herbs for red dysentery include Zha Rou (Crataegi Fructus), Hou Po (Magnoliae Officinalis Cortex), Bai Tou Weng (Pulsatillae Radix), Yin Hua (Lonicerae Japonicae Flos), Chen Pi (Citri Reticulatae Pericarpium), Mu Xiang (Aucklandiae Radix), and Ku Shen (Sophorae Flavescentis Radix), selected based on initial symptoms. If clearing heat and purging turbidity along with regulating Qi fails, blood-nourishing agents such as Sheng Di Tan (Carbonized Rehmanniae Radix), Gui Shen Tan (Carbonized Angelicae Sinensis Radix), and Dan Pi (Moutan Cortex) should be used. Stool resembling bean juice indicates concurrent dampness, treated with Cang Zhu (Atractylodis Rhizoma), Hou Po (Magnoliae Officinalis Cortex), Fu Ling (Poria), Ze Xie (Alismatis Rhizoma), and Zhu Ling (Polyporus). Stool resembling fish brain indicates Spleen-Kidney deficiency-cold, where Shen Fu Tang (Ginseng and Aconite Decoction) may be considered appropriately. Stool resembling leaking roof water suggests abundant damp-toxin. Both conditions approach critical failure; if prolonged without cure, they develop into Xiu Xi Li (Resting Dysentery). Treatment primarily tonifies the Spleen and secondarily the Kidney, adhering to the principle that chronic dysentery implicates the Kidney. However, one must adjunctively use Ku Huang Qin (Scutellariae Radix dried/stemmed), Zha Rou (Crataegi Fructus), and Sha Ren Qiao (Amomi Fructus Shell) for slow tonification. One must absolutely avoid harsh dual-tonification, as it often causes abdominal distension. In Resting Dysentery, although Spleen and Kidney are deficient, residual pathogens remain; thus, light, clear, and resolving agents are necessary to avoid harm. Generally, diarrhea transforming into dysentery indicates Spleen transmitting to Kidney, worsening the condition; dysentery transforming into diarrhea indicates Kidney transmitting to Spleen, lightening the condition. For red dysentery in patients with strong constitution at onset, Tao Ren Cheng Qi Tang (Peach Kernel and Magnolia Decoction) should be used for purgation, yielding rapid results. Astringent drugs must be strictly avoided to prevent serious harm. Zhu Danxi stated: "Regulating Qi eliminates tenesmus; harmonizing Blood heals pus in stool." I have gained insights and propose: Regulating Qi eliminates tenesmus; cooling Blood heals pus in stool; raising Yang eliminates tenesmus; raising the Clear causes Turbid to descend; harmonizing Blood heals pus in stool. Within a moment of conceptual shift, there is a distinction of priority, making this an even more appropriate therapeutic principle.