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。
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.