Patients with dementia manifest a noticeable decline in memory. Many patients or their families regard this as a normal age-related phenomenon and do not pay much attention, resulting in delayed treatment and lack of timely intervention, which may lead to severe clinical consequences. Therefore, it is very important to pay attention to dementia and its early signs. The early signs of dementia mainly include mild memory impairment. For instance, patients might occasionally forget where they have placed things, such as forgetting where a wallet was placed in the bedroom. These occurrences, while sporadic, do not significantly impact daily life. Thus, it is crucial to take these signs seriously and intervene early, including consulting a neurologist. Additionally, other early signs of dementia may include a decline in learning ability and work efficiency, which could also indicate early symptoms of the condition.