The cause of a stroke depends on the type of stroke. The three main types of stroke are transient ischemic attack (TIA), ischemic stroke, and hemorrhagic stroke.

A TIA is caused by a temporary blockage in an artery that leads to the brain. The blockage, typically a blood clot, stops blood from flowing to certain parts of the brain. A TIA typically lasts for a few minutes up to a few hours, and then the blockage moves and blood flow is restored.

Like a TIA, an ischemic stroke is caused by a blockage in an artery that leads to the brain. This blockage may be a blood clot, or it may be caused by atherosclerosis. With this condition, plaque (a fatty substance) builds up on the walls of a blood vessel. A piece of the plaque can break off and lodge in an artery, blocking the flow of blood and causing an ischemic stroke.

A hemorrhagic stroke, on the other hand, is caused by a burst or leaking blood vessel. Blood seeps into or around the tissues of the .......continue here: https://www.healthvibes.us/2019/02/causes-and-risk-factors-of-stroke.html