The intellectual impairment in multi-infarct dementia sometimes involves only some specific and limited cognitive functions, such as difficulties in calculation and naming. The general reasoning and judgment can remain intact for quite a period of time, and the person is often able to detect these impairments and take the initiative to seek medical treatment or try to make up for them, which is why it is called “mesh-like dementia”. So, what is the differential diagnosis of mesh-like dementia? The following is to introduce to you. The differential diagnosis of mesh-like dementia: progressive dementia: a syndrome caused by a slow progressive brain disease. The course of the disease is progressive. It is characterized by a variety of higher cortical dysfunctions involving memory, thinking, orientation, comprehension, calculation, judgment, speech and learning ability. Clarity of consciousness, poor emotional self-control, and declines in socialization or motivation often accompany cognitive impairment, but can sometimes precede it. Subcortical dementia: In general, multiple infarct dementia, thalamic dementia, and Binswanger’s disease have lesions in the subcortical neuronal nuclei and white matter, and their symptoms tend to fall within the range of subcortical dementia. Large cerebral infarct dementia and infarct dementia in the watershed area involve both cortex and subcortex, and their clinical symptoms and signs are mixed cortical and subcortical dementia. Vascular dementia: dementia caused by cerebral infarction due to vascular disease, including hypertensive cerebrovascular disease. Dementia can occur after multiple transient ischemic attacks or consecutive acute cerebrovascular accidents, or in individuals after a single severe stroke. The infarct foci are usually small, but the effects can be cumulative. The disease usually starts in later life and includes multiple cerebral infarct dementias.