Elderly diabetes often begins inconspicuously, lacking the typical symptoms of excessive thirst, urination, hunger, and weight loss. It can present with various complications such as diarrhea, constipation, urinary retention, limb numbness, skin itching, and shoulder joint pain. Elderly diabetics often have concurrent infections, particularly in the respiratory and urinary systems, as well as cholecystitis and skin infections. They may also suffer from ketoacidosis, hyperosmolar hyperglycemia syndrome, and coexist with multiple chronic diseases of old age such as heart failure, coronary heart disease, hypertension, and hyperlipidemia. They require different types of medications and are susceptible to hypoglycemia, making timely diagnosis and treatment challenging. These are the symptoms of diabetes in the elderly.