Several studies have shown that the combination of globulin and albumin can predict the outcome of patients with various cancers such as nasopharyngeal cancer, non‐small‐cell lung cancer, and upper tract urothelial carcinoma.1, 2, 3 The globulin‐to‐albumin ratio (GAR) is the ratio of the serum globulin level and the serum albumin level, both of which are routinely measured at preoperative term. The gene discussed is ALB; the disease is renal pelvis/ureter urothelial carcinoma.