You may have heard a doctor or another stroke survivor talk about lacunar stroke. This refers to blockage in small arteries, most often in deep in the middle of the brain. Often lacunar strokes are so small people do not know they have had them until there is evidence seen on MRI that they have had strokes in the past. They are a type of ischemic stroke and though there may not be many symptoms with a lacunar stroke, it still must be taken seriously.
The most common reason, though not the only reason, for lacunar stroke are diseases that affect the small vessels: high blood pressure, diabetes and injury caused by tobacco use.
Photo courtesy of National Institutes of Health