The vascular system, also known as the circulatory system, plays a vital role in transporting blood throughout the body. It consists of the heart, arteries, veins, and capillaries, working together to ensure that oxygen, nutrients, and other essential substances are delivered to tissues and organs. Understanding what is the vascular system is crucial for recognizing the importance of vascular health. The Vascular Society of India is dedicated to advancing knowledge, treatment, and research on vascular diseases to improve patient care and outcomes across the country.