脏腑别通理论是不同于脏腑表里理论的一种中医脏腑关系理论，该理论丰富了中医脏腑理论学说，在临床诊疗中具有独特的应用价值。基于《医学入门》所转引的“肺与膀胱相通”理论，为膀胱病从肺论治提供了理论依据。癃闭是以小便量少，点滴而出，甚则闭塞不通为主症的一种病症，其病位在膀胱，基本病机为膀胱气化功能失调。治疗癃闭从肺论治除“提壶揭盖”之泻肺法外，尚可结合“益气升陷”之补肺法。癃闭的常见证型主要是气虚湿阻，源于张锡纯大气学说的经验方加味升陷汤与癃闭病机方证契合。该方以补为通，以通为补，通补兼施，益气升陷，宣肺行水。本研究基于“肺与膀胱相通”理论，探讨其治疗癃闭的临床经验与价值，并通过验案示理，以期为临床应用提供参考。

The theory of "Zang-Fu extraordinary connection" is a theory of Zang-Fu organ relationships in traditional Chinese medicine， which is different from the theory of "exterior-interior relationships in Zang-Fu organs". This theory enriches the Zang-Fu organ theory of traditional Chinese medicine and has unique application value in clinical diagnosis and treatment. The theory of "lung and bladder interconnection" introduced by Yixue Rumen provides a theoretical basis for the treatment of bladder disease from the lung. Retention of urine is a disease characterized by scanty， drip-like or blocked urine. The diseased location of retention of urine is the bladder， and its fundamental pathogenesis is the dysfunction of bladder Qi transformation. In addition to the purging lung method of “lifting up pot and removing lid”， the treatment of retention of urine from the lung can also be combined with the tonifying lung method of “tonifying Qi and lifting collapse”. The common syndrome of retention of urine is mainly characterized by Qi deficiency and water retention. The empirical prescription Modified Shengxian Decoction derived from Zhang Xichun 's Pectoral Qi theory is consistent with the pathogenesis of retention of urine. This prescription embodies a therapeutic strategy of taking tonifying as dredging， taking dredging as tonifying， synergistically integrating reinforcement and elimination， tonifying Qi and lifting collapse and ventilating lung and promoting diuresis. This study presents the clinical value of the “lung and bladder interconnection” theory in the treatment of retention of urine， and demonstrates through case studies， in order to provide reference for clinical application.