目的：探讨并总结夏永良基于“六郁”理论治疗颈部淋巴结肿大的辨证思路。方法：通过收集整理夏永良门诊诊治的颈部淋巴结肿大病例，总结相关治疗经验及用药特色，通过分析典型案例进一步论述夏永良的临证经验。结果：夏永良结合临床实践，从朱丹溪的“六郁”理论中总结出了颈部淋巴结肿大的治疗方法。“气、血、痰、火、湿、食”此六郁可单独致病，亦可多种同时出现，杂合为病。在临证时重在辨别出“六郁”之间的关系，明确“轻重缓急”。治疗时应以调畅气机、疏解郁结为基础，并根据其“轻重缓急”的程度，针对性的遣方用药。所举验案，夏永良辨为湿热内蕴、痰浊阻滞之证，治拟清热利湿、化痰开郁之法，方以三仁汤合二陈汤、升降散加减，效果显著。结论：夏永良诊治颈部淋巴结肿大从朱丹溪的“六郁”理论出发，结合实际，针对各个具体病例的不同病因病机，灵活运用经方、时方，标本兼顾，其临床经验值得学习和借鉴。

Objective： To explore and summarize Xia Yongliang’s differential diagnosis and treatment approach for cervical lymph node swelling based on the "Six Stagnations" theory. Methods： Clinical cases of cervical lymph node swelling treated by Xia Yongliang in outpatient settings were collected and analyzed to summarize his therapeutic experience and medication characteristics. A typical case was examined in detail to further illustrate his clinical insights. Results： Based on clinical practice， Xia Yongliang derived a treatment method for cervical lymph node swelling from Zhu Danxi’s "Six Stagnations" theory. The six stagnations—qi， blood， phlegm， fire， dampness， and food*—can occur individually or in combination， leading to disease. The key to clinical diagnosis lies in discerning the relationships among these stagnations and determining their "severity and urgency." Treatment should focus on regulating qi movement and resolving stagnation as the foundation， with tailored prescriptions based on the specific "severity and urgency" of each case. In the presented case， Xia Yongliang diagnosed the condition as internal accumulation of damp-heat and phlegm-turbidity obstruction， adopting a treatment strategy of clearing heat， resolving dampness， dissolving phlegm， and relieving stagnation. The modified Sanren Tang （Three-Nut Decoction） combined with Erchen Tang （Two Matured Substances Decoction） and Shengjiang San （Upbearing and Downbearing Powder） yielded significant therapeutic effects. Conclusion： Xia Yongliang’s approach to cervical lymph node swelling， rooted in Zhu Danxi’s "Six Stagnations" theory， integrates practical clinical considerations. By flexibly applying classical and contemporary formulas tailored to the specific etiology and pathogenesis of each case， he achieves both symptomatic and root-level treatment. His clinical experience offers valuable insights for fellow practitioners.