Serum albumin may reflect the overall nutritional status of the body, and low serum albumin levels indicate poor nutrition in the host, which can negatively affect overall health, such as damage to the body’s cellular immunity, humoral immunity and phagocytic function and other defense mechanisms, increase inflammatory response, and promote tumor cell invasion function, thereby promoting the occurrence and progression of tumors (41, 42). This evidence concerns the gene ALB and neoplasm.