Objective To explore the specific mechanism of M2 macrophages and Th2 cytokines in the process of hypertrophic scar formation.Methods The weighted gene co-expression network analysis(WGCNA)was used to analysis the genome-wide expression data of mouse hypertrophic scar GSE26390,and the co-expression gene module and core regulatory genes highly correlated with M2 macrophage,Th2 cytokine and fibrosis were obtained.Results The following 8 genes were identified as core regulatory genes of M2 macrophages and Th2 type cytokines involved in the formation of hypertrophic scar:CLEC4A,CYBA,LOXL2,Hcvn1,NCKAP1L,PRRX2,LGALS9,CMTM3.Conclusion The above eight genes are involved in the regulation of immune response,extracellular matrix formation,tissue repair and other processes related to macrophage and T cells,and are potential new targets for prevention and treatment of hypertrophic scars.