Representative immune genes were significantly increased in ectopic endometriotic lesions. The expression of genes encoding for (A–F) inflammatory cytokines and receptors, (G) receptor for FAS, (H–L) TNF superfamily, (M–R) cell surface markers for T-cell activation and antigen-presenting cell activation, (P and Q) chemoattractants for endothelial progenitor cell recruitment, (S and T) cell adhesion molecules, and (U–Y) HLA molecules were significantly increased in the ectopic tissues compared with the control. The graphs represent the scatter plots of all samples. The middle bar denotes the mean of the samples, and the error bars represent the standard deviation. *P≤.05 between ectopic versus eutopic and between ectopic versus control.