The vascular system in the network of blood vessels that circulate blood from the heart to the rest of the body. When the vascular system is compromised with vascular disease, the network of blood vessels cannot properly circulate blood, causing a variety of problems. Vascular disease becomes increasingly common as people age. Because the disease may not cause symptoms, many people do not know that they are affected.

Vascular disease is almost always caused by conditions that weaken or clog the blood vessels. The most common cause is arteriosclerosis, which is a hardening of the arteries. This prevents proper blood flow throughout the body.