Blood stasis is the key pathogenic factor and important pathogenesis of stroke.As the basic therapeutic principle,the method of activating blood circulation to dissipate blood stasis is widely used in the treatment of ischemic stroke.It has important clinical significance for improving blood perfusion in cerebral infarction and affecting collateral circulation reconstruction.However,it is difficult to grasp the application period of promoting blood circulation by removing blood stasis in clinical practice,and how to correctly weigh the drug use of activating blood circulation by removing blood stasis has become a major obstacle to diagnosis and treatment.In this regard,through clinical syndrome discovery,syndrome differentiation at the same time also need flexible stage disease differentiation treatment,that is,in the different stages of the disease,using different degrees of treatment rule,with the method of promoting blood circulation to treat ischemic stroke in stages,in the diagnosis and treatment of the disease has clinical significance,and can promote diagnosis and treatment effects.