再谈少阳病 --气郁与水郁是少阳病的主要病变

少阳经连结了胆和三焦，位于三阳的半表半里之间，具有气血水火枢转和通道的功能，能够宣通、升发、疏调人体的气血津液。少阳病多为枢机失运，正邪分争，气血水火交郁，寒热虚实，偏颇不定等病理演变。其证候以气机的郁滞和水液的停滞为主要特征。足少阳胆的病变从气机的郁而不畅（小柴胡汤证）到滞而不通（大柴胡汤证），甚而气结（柴胡加芒硝汤证）；手少阳三焦的病变则主要是三焦气、水通道的郁滞，表现为柴胡桂枝干姜汤证。

Re-discussion of Shaoyang Diseases--Stagnation of qi and Retention of Fluid Being the Main Pathologic Changes of Shaoyang Diseases

Shaoyang Meridian, located between the half exterior and half interior of Three Yang, connects the gallbladder and Three Jiao, having the function of transporting qi, blood, and fluid. It can disperse, send up and regulate human body's qi, blood and fluid. Shaoyang diseases are mainly caused by the pathologic changes such as imbalance of pivot, struggle between the vital energy and the pathogenic factors, stagnation and retention of qi, blood, fluid and fire deficiency and excess of cold and heat. Its syndrome is characterised by the stagnation of qi and retention of fluid. The pathologic change of Gallbladder meridian of Foot-Shaoyang develops from the stagnation of qi (Syndrome of Xiao Chaihu Decoction), then to the failure of qi transportation (Syndrome of Chaihu Mangxiao Decoction). The pathologic change of the Three-jiao Meridian of Hand-Shaoyang shows the stagnation of path of Three Jiao qi and fluid (Syndrome of Chaihu Guizhi Ganjiang Decoction).