There are four stages of dementia with respect to their progressive patterns of cognitive and functional impairments.
Pre-dementia:
Pre -dementia is also called as the mild cognitive dementia, which is the first stages of dementia that is the earliest stage of dementia. In this stage, the person’s brain changes have been happening for a long time and the symptoms in this stage are just a beginning to show. The MMSE scores in this stage vary between 27 and 30.
Early stage:
These stages are called the second stage of dementia, where the person begins to show symptoms noticeable to the people around them. The MMSE score will be around or ranges from 20 and 25. The symptoms of early stage dementia are like memory difficulty,