There are two main types of strokes: ischemic and hemorrhagic. Ischemic strokes are caused by blockage of an artery in the brain, usually due to a blood clot or narrowing of arteries from conditions like atherosclerosis. Hemorrhagic strokes result from ruptured blood vessels in the brain that cause bleeding. The most common causes of hemorrhagic strokes are hypertension and cerebral aneurysms, which are bulges or weak spots in artery walls. Symptoms and treatment options vary depending on the specific type and location of the stroke in the brain.