What Is Atherosclerosis?

Atherosclerosis is a hardening and narrowing of your arteries. It can put blood flow at risk as your arteries become blocked.

You might hear it called arteriosclerosis or atherosclerotic cardiovascular disease. It’s the usual cause of heart attacks, strokes, and peripheral vascular disease what together are called cardiovascular disease.

You can prevent and treat this process.

Atherosclerosis Signs and Symptoms

You might not have symptoms until your artery is nearly closed or until you have a heart attack or stroke. Signs can also depend on which artery is narrowed or blocked.

Symptoms related to your coronary arteries include

Arrhythmia, an unusual heartbeat

Pain or pressure in your upper body, including your chest, arms, neck, or jaw. This is known as angina.

Shortness of breath

Symptoms related to the arteries that deliver blood to your brain include

Numbness or weakness in your arms or legs

A hard time speaking or understanding someone who’s talking

Drooping facial muscles

Paralysis

Severe headache

Trouble seeing in one or both eyes

Symptoms related to the arteries of your arms, legs, and pelvis include

Leg pain when walking

Numbness

Symptoms related to the arteries that deliver blood to your kidneys include

High blood pressure

Kidney failure

Atherosclerosis Diagnosis

Your doctor will start with a physical exam. They’ll listen to your arteries and check for weak or absent pulses.

You might need tests, including

Angiogram, in which your doctor puts dye into your arteries so they’ll be visible on an X-ray

Ankle-brachial index, a test to compare blood pressures in your lower leg and arm

Blood tests to look for things that raise your risk of having atherosclerosis, like high cholesterol or blood sugar

Chest X-ray to check for signs of heart failure

CT scan or magnetic resonance angiography (MRA) to look for hardened or narrowed arteries

EKG, a record of your heart’s electrical activity

Stress test, in which you exercise while health care professionals watch your heart rate, blood pressure, and breathing

You might also need to see doctors who specialize in certain parts of your body, like cardiologists or vascular specialists, depending on your condition.