Chemoattractants facilitate the recruitment of macrophages at the lesion site, especially chemokines IL-8, MCP-1, and RANTES, whose participation was described in section alteration of immune cells function, which can serve as biomarkers in identifying patients with endometriosis, but the precision of such tests can be enriched by including other inflammatory markers, or in the case of infertility-associated endometriosis, these molecules could be included as endometrial receptivity markers. This evidence concerns the gene CCL5 and endometriosis.