任越庵

Ren Yue'an, whose life remains unclear, is known only through limited public sources. His surviving work, Shanghan Fazhu (Treatise on Cold Damage: Ancestral Method), indicates that he was a student of Chinese medicine devoted to the Shanghan Lun. The title suggests that he regarded Zhang Zhongjing as the founding ancestor of cold-damage doctrine, and the book likely discusses the text's passages, methods, and diagnostic reasoning, placing it within the tradition of classical Chinese medical scholarship. Notably, in the existing library classification the work is grouped under folk literature, which does not directly reflect the author's identity but may indicate something about the popular character of the edition, its compilation, or its textual form. Since his dates, native place, and medical training cannot be verified, a full biography is impossible; only this single surviving work offers a glimpse of his scholarly orientation. For general readers, Ren Yue'an's name survives chiefly through Shanghan Fazhu, and his significance lies mainly in that book's continuation and popularization of cold-damage learning.