Peripheral artery disease, or PAD, is a disease in which plaque builds up in the arteries that carry blood throughout your body. Plaque is made up of fat, cholesterol, calcium, fibrous tissue, and other substances in the blood.
When plaque builds up in the body’s arteries, the condition is called atherosclerosis. Over time, plaque can harden and narrow the arteries. This limits the flow of oxygen-rich blood to your organs and other parts of your body.
PAD usually affects the arteries in the legs, but it also can affect the arteries that carry blood from your heart to your head, arms, kidneys, and stomach.
Blocked blood flow to your legs can cause pain and numbness. It also can raise your risk of getting an infection in the affected limbs.
If you have leg pain when you walk or climb stairs, talk with your doctor. Sometimes older people think that leg pain is just a symptom of aging. However, the cause of the pain could be PAD.
Tell your doctor if you’re feeling pain in your legs and discuss whether you should be tested for PAD.
Smoking is one of the main risk factor for PAD If you smoke or have a history of smoking, your risk of PAD increases. Other factors, such as age and having certain diseases or conditions, also increase your risk of PAD.
Although PAD is serious, it’s treatable. If you have the disease, see your doctor regularly and treat the underlying atherosclerosis. PAD treatment may slow or stop disease progress and reduce the risk of complications. Treatments include lifestyle changes, medicines, and surgery or procedures.
Pic from https://www.nhlbi.nih.gov/health-topics/peripheral-artery-disease