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Plaque (Artery)

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Plaque is a buildup of cholesterol, white blood cells, calcium, and other substances in the walls of arteries. Over time, plaque may narrow the artery.

Plaque sometimes reduces blood flow to the heart muscle, which can cause angina symptoms, such as chest pain or pressure. Plaque in the large artery in the neck (carotid artery stenosis) may reduce blood flow to the brain.

If a plaque breaks open or ruptures, the body will try to repair the injured artery lining. A blood clot may form and block blood flow. This blocked blood flow can cause a heart attack or stroke.

Current as of: July 31, 2024

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Current as of: July 31, 2024

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.