An ischemic stroke occurs when a blood clot, known as a thrombus, blocks or plugs an artery leading to the brain. A blood clot often forms in arteries damaged by a buildup of plaques, known as atherosclerosis. It can occur in the carotid artery of the neck as well as other arteries.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press.
A generous benefactor has pledged $1 million and challenged us to raise an additional $250,000. Help us reach our goal!