The interaction between activated macrophages or maybe follicular cells (TLR stimulation via microbial products leads to macrophages activation) and other stromal cells in women with endometriosis downregulates activation of immune cells, possibly by stimulating the secretion of IL-10 and TGF-β, and may further trigger the immune escape of ectopic fragments and promote the occurrence and the development of endometriosis in women (39, 40). Here, TGFB1 is linked to endometriosis.