Vascular complications refer to problems that affect the blood vessels in the body, which can lead to issues like reduced blood flow or blood clots. These complications can arise from various conditions, including diabetes, hypertension, and atherosclerosis, where the blood vessels become narrowed or blocked. Common types of vascular complications include peripheral artery disease, which affects blood flow to the limbs, and venous insufficiency, where veins struggle to return blood to the heart. Early detection and management are crucial to prevent serious outcomes, such as heart attacks or strokes.