Previous studies have reported that other factors, such as gender, age, Epstein–Barr virus deoxyribonucleic acid (EBV DNA), serum lactate dehydrogenase (LDH), albumin (ALB), hemoglobin (HGB), C‐reactive protein (CRP),17, 18, 19, 20, 21, 22 family history of cancer,23, 24 histological type,25, 26 alcohol consumption,27 and cigarette consumption28 contribute to the prognosis of NPC patients. This evidence concerns the gene CYGB and cancer.