What Are the Signs and Symptoms of Atherosclerosis?
Atherosclerosis usually doesn’t cause signs and symptoms until it severely narrows or totally blocks an artery. Many people don’t know they have the disease until they have a medical emergency, such as a heart attack or stroke.
Some people may have other signs and symptoms of the disease. These depend on which arteries are severely narrowed or blocked.
The coronary arteries supply oxygen-rich blood to your heart. When plaque narrows or blocks these arteries (a condition called coronary artery disease, or CAD), a common symptom is angina (AN-ji-na or an-JI-na).
Angina is chest pain or discomfort that occurs when your heart muscle doesn’t get enough oxygen-rich blood. Angina may feel like pressure or a squeezing pain in your chest. You also may feel it in your shoulders, arms, neck, jaw, or back.
This pain tends to get worse with activity and go away when you rest. Emotional stress also can trigger the pain.
Other symptoms of CAD are shortness of breath and arrhythmias (irregular heartbeats).
The carotid arteries supply oxygen-rich blood to your brain. When plaque narrows or blocks these arteries (a condition called carotid artery disease), you may have symptoms of a stroke. These symptoms include sudden numbness, weakness, and dizziness.
Plaque also can build up in the major arteries that supply oxygen-rich blood to the legs, arms, and pelvis (a condition called peripheral arterial disease). When these arteries are narrowed or blocked, it can lead to numbness, pain, and sometimes dangerous infections.
Source: National Heart Lung and Blood Institute, National Institutes of Health
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