Objective To investigate the association between the inflammatory factors and carotid atherosclerosis in patients with cerebral infarction. Methods The carotid intima-media thickness(IMT), plaque and inflammatory indexes were correlative analysed in 244 patients with acute cerebral infarction. Results Inflammatory factors ( monocyte proportion, levels of fibrinogen and CRP,erythrosedimentation) were associated with carotid atherosclerosis. Monocyte proportion (ORIMT =1.231,P