Vascular dementia known as multi-infarct dementia (MID) and vascular cognitive impairment (VCI). It is caused by difficulties in the supply of blood to the brain, typically by a series of minor strokes. It is the second-most-common form of dementia afterAlzheimer's disease (AD) in older adults. Many subtypes of vascular dementia have been described to date. The spectrum includes (1) mild vascular cognitive impairment, (2) multi-infarct dementia, (3) vascular dementia due to a strategic single infarct, (4) vascular dementia due to lacunar lesions, (5) vascular dementia due to hemorrhagic lesions, (6) Binswanger disease, (7) subcortical vascular dementia, and (8) mixed dementia (combination of AD and vascular dementia). Vascular dementia is sometimes further classified as cortical or subcortical dementia.