It ha been proven that serum vascular endothelial growth factor (VEGF) concentration was elevated significantly after surgery in patients of non-small cell lung cancer (NSCLC).Platelet may be the main resource of serum VEGF.The aim of this study is to investigate the correlation between postoperative dynamic changes of serum VEGF levels and platelet counts in patients of NSCLC who underwent surgery. This evidence concerns the gene VEGFA and non-small cell lung carcinoma.