跌闪而血瘀不散，或忧郁而结血不行，或风邪而血蓄不达，遂致因循时日，留在腹中，
致成血臌。饮食入胃不变精血，反去助邪，久则胀，胀则臌矣。
水蛭三钱（炒黑。大约一两炒黑取末用三钱），当归二两，雷丸、红花、枳实、白芍、
牛膝各三钱，桃仁四十粒（去皮尖捣碎），煎服。服后下血斗余，再服，血尽自愈。
庚生按∶此方水蛭一味，太觉猛峻，且此物虽经 研，见水复活，患臌之人，正气必虚，
脏腑必弱，如果贻害，岂非大患，不若改用夜明砂为妥。蚊之吮血，不减蛭虫，夜明砂乃食
蚊而化者也，本草称其能下死胎，则其能攻蓄血明矣。
跌闪而血瘀不散，或忧郁而结血不行，或风邪而血蓄不达，遂致因循时日，留在腹中，
致成血臌。饮食入胃不变精血，反去助邪，久则胀，胀则臌矣。
水蛭三钱（炒黑。大约一两炒黑取末用三钱），当归二两，雷丸、红花、枳实、白芍、
牛膝各三钱，桃仁四十粒（去皮尖捣碎），煎服。服后下血斗余，再服，血尽自愈。
庚生按∶此方水蛭一味，太觉猛峻，且此物虽经 研，见水复活，患臌之人，正气必虚，
脏腑必弱，如果贻害，岂非大患，不若改用夜明砂为妥。蚊之吮血，不减蛭虫，夜明砂乃食
蚊而化者也，本草称其能下死胎，则其能攻蓄血明矣。
因跌打闪挫导致瘀血无法消散，或因忧郁情绪导致凝结之血运行不畅，或因风邪侵袭导致蓄积之血不能通达，从而拖延时日，瘀血滞留于腹部，最终形成血臌（以腹部胀大、内有瘀血为特征的病证）。饮食进入胃中后，不仅不能转化为精微物质和血液，反而去助长邪气，日久则出现腹胀，腹胀严重便发展为臌胀。
方药组成：水蛭三钱（炒至黑色。大约一两水蛭炒黑后取粉末，使用三钱），当归二两，雷丸、红花、枳实、白芍、牛膝各三钱，桃仁四十粒（去皮尖并捣碎），加水煎煮服用。服药后排出余血约一斗以上，再次服用，待瘀血排尽，疾病自然痊愈。
庚生按语：此方中的水蛭一味药，药性过于猛烈峻急。而且这种药物虽然经过研磨，但遇水仍能复活。患有臌胀病的患者，正气必然虚弱，脏腑功能必然薄弱，如果因此造成危害，岂不是大患？不如改用夜明砂更为妥当。蚊子吸食血液的能力不亚于水蛭，而夜明砂是蚊子食用后转化而成的粪便，《本草》记载它能促使死胎排出，那么它攻破蓄积之瘀血的作用也就显而易见了。
When blood stasis fails to dissipate due to falls or sprains, or when congealed blood fails to circulate due to melancholy, or when accumulated blood cannot reach its destination due to wind pathogenic factors, the condition may be neglected over time. The blood remains in the abdomen, eventually leading to Blood Distension (a disease characterized by abdominal distension and internal blood stasis). Food and drink entering the stomach fail to transform into essence and blood; instead, they assist the pathogenic factors. Over time, this leads to bloating, and severe bloating develops into Distension syndrome.
Prescription: Shuizhi (Hirudo, leech) 3 qian (stir-fried until black. Approximately 1 liang of Hirudo is stir-fried until black, then powdered, and 3 qian of the powder is used); Danggui (Angelicae Sinensis Radix) 2 liang; Leiwan (Ovum Ascaris), Honghua (Carthami Flos), Zhishi (Aurantii Fructus Immaturus), Baishao (Paeoniae Radix Alba), and Niuxi (Achyranthis Bidentatae Radix) each 3 qian; Taoren (Persicae Semen) 40 grains (skin and tips removed, crushed). Decoct and take orally. After taking the medicine, more than one dou of blood will be discharged. Take again; once the blood is completely expelled, the disease will heal spontaneously.
Commentary by Gengsheng: The inclusion of Shuizhi (Hirudo) in this prescription is considered too potent and harsh. Moreover, although this creature is ground, it can revive upon contact with water. Patients suffering from Distension have deficient righteous qi and weak zang-fu organs. If this causes harm, would it not be a major disaster? It would be more appropriate to substitute Ye Mingsha (Stercoris Vespertilionis, bat guano). Mosquitoes suck blood just as effectively as leeches, and Ye Mingsha is formed after mosquitoes are consumed. Since Bencao (Materia Medica) states that Ye Mingsha can expel dead fetuses, its ability to attack accumulated blood is evident.