Since VEGFR1 is the main tyrosine kinase related to reduced spermatogenic activity in the testicular cells (Minutoli et al., 2012), it could be inferred that the WPS exposure may have caused an increase in the FLT1 gene expression as seen by the increase in VEGFR1 protein which is related to infertility (15). This evidence concerns the gene FLT1 and Infertility.