Within the eutopic endometria obtained from women with stage I-II endometriosis there was a predominance of several cell subtypes (aDC, CD4 T cells, CD4 TEM, eosinophils, macrophages M1, NKT); however, this difference was less significant in the endometria obtained from women with stage III-IV endometriosis, which predominantly contained only M2 macrophages and NKT. Here, CD4 is linked to endometriosis.