Blood may seep slowly into brain tissue from a weakened artery. Or an artery may burst. A cerebral hemorrhage usually occurs in people with a long history of high blood pressure. It may also be the result of an aneurysm or of an injury to the head. Although cerebral hemorrhage is less common than thrombosis or embolism , it is more likely to be fatal.
Some people experience one or more ministrokes before they have a stroke.
But a TIA only last a few minutes or hours. Then it disappears as quickly as it came on. A TIA is caused by a temporary blockage by a clot in an artery. Every year about one in every five Americans has a stroke. It is the third leading cause of death in the United States.