A study found that VEGF could specifically promote neovascularization and vascular endothelial cell division, accelerate the growth of blood vessels in endometrial polyps, and increase blood supply.20 This study demonstrated that the serum VEGF level of the patients in both groups significantly decreased in the 1st, 3rd and 6th month after treatment compared to before surgery. This evidence concerns the gene VEGFA and endometrial polyp.