Briefly, impaired expression of CXCR4 [146] and enhancement of IL-15 in women with implantation failure [172] and augmented expression of CXCL13, IL-8, MCP-1, and αvβ3 in endometriosis [176–179] as well as increased expression of the intercellular adhesion molecule-1 (ICAM-1) in the placenta of foetal growth restricted pregnancies [180] have been observed. Here, ICAM1 is linked to endometriosis.