Located in the pleurodiaphragmatic interspace under the costal region,Xiao Chaihu Decoction syndrome has the diseases of liver, gallbladder,spleen and stomache.

• 小柴胡汤证病位在胁下膜原,病及肝胆脾胃,为少阳太阴所主,主要病邪为湿热及寒邪伤阳,相火内郁。