DEAR DOCTOR K: My grandfather just had a hemorrhagic stroke and is in pretty bad shape. What is it, and how is it treated?
DEAR READER: I'm sorry to hear this, but there's a chance he'll make a good recovery. There are two major kinds of strokes. In the most common type, a blockage in one of the brain's arteries shuts off the blood supply to a part of the brain. That's called an ischemic (is-KEE-mic) stroke. A hemorrhagic stroke occurs when one of the brain's arteries bursts and spills blood into the surrounding tissue.