梅毒
梅毒者，多以交媾而得，其毒最易傳染者也。而核其傳染之由，每乘尿管皮薄易爛之處而入。醫學家因其毒由淺而深，即以是分作三層。大抵該癥初起，類似小瘡，漸漸貼近陽具兩旁之髀罅處，並起肉核，待至三四十日，或久至二三月，其毒即由肉核而發，由是內皮外皮，惡染其毒，而患癥愈深，若延至三至十五載，則該毒並能入臟入筋入骨，而成為難治之癥矣。
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