〔摘要〕 少阳为人身之半，胸腔、腹腔两大腔隙之间的范围为少阳所主。由于其物质结构的特殊性，少阳病范围非常广泛，病变除气分外，还有涉及血分的情况。通过简述少阳病的物质基础，少阳常可因三焦水道不利、厥阴疏泄不及或正邪交争于少阳等使病涉血分。再从临床实践的角度，提出诊断少阳病后需辨清血分的相关症状及病邪，阐述少阳与他经合病时可兼夹血分病变，探索焦膜血分在辨治间质性肺疾病中的应用，丰富对少阳病的认识，拓宽治疗思路。

    〔关键词〕 少阳;三焦;焦膜;血分

    〔中图分类号〕R2-0 〔文献标志码〕A 〔文章编号〕doi：10.3969/j.issn.1674-070X.2020.08.005

    〔Abstract〕 Shaoyang is the position which lies on the half of the human body. The range between the two lacunae of thoracic cavity and abdominal cavity was dominated by Shaoyang system. Because of its special material structure ......