The five signs of diabetes precursors are ill-advised and unscientific. Risk factors for diabetes usually include congenital and acquired factors, and diabetes can be asymptomatic or manifested by excessive drinking, urination, overeating, and weight loss. Diabetes is related to genetic factors, as well as risk factors such as obesity, high blood pressure, and high blood cholesterol. Patients with diabetes mellitus may have symptoms such as excessive drinking, excessive urination, excessive eating, weight loss, etc. In addition, there are also some patients with insidious onset of symptoms, relatively mild or no symptoms, only found during physical examination. Patients with suspected diabetes can seek medical attention to further clarify the diagnosis.