Untreated diabetes can lead to severe risks and complications, including: Cardiovascular disease: Increased risk of heart attack, stroke, and high blood pressure. Kidney damage: Potential for kidney failure or diabetic nephropathy. Nerve damage: This leads to peripheral neuropathy, causing pain or numbness in extremities. Vision problems: Risk of diabetic retinopathy, which can lead to blindness. Foot problems: Increased risk of infections and ulcers due to poor circulation and nerve damage. Increased susceptibility to infections: Poor immune response can lead to frequent infections. Diabetic ketoacidosis: A life-threatening condition caused by very high blood sugar levels. Early diagnosis and management are crucial to prevent these complications.