Intracerebral hemorrhage frequently occurs in nervous system diseases, and le ads to secondary cerebral lesion, such as ischemia, edema of perihematomal brain r egions and the biochemical change of the cell. Recent studies have confirmed tha t cytokines such as basic fibroblast growth factor(bFGF), vascular endothelial g r owth factor(VEGF) and tumor necrosis factor(TNF-α) are involved in the pathoge n esis of cerebral hemorrhage. In nervous system, positive expressions of bFGF and TNF-α are in neurons and astrocytes, and that of VEGF is in vascula r endothelial cells. The content of bFGF protein in brain regions is different a t different time after brain injuries. There was no literature about detectin g the expressions of bFGF, VEGF and TNF-α protein in the perihematomal brain r egion s after intracerebral hemorrhage. Using immunohistochemical technique,the author detected the expressions of bFGF,VEGF and TNF-α in the perihematomal brain re g ions in order to research the pathological mechanism of intracerebral hemorrhage.