Forgetfulness may be a precursor to Alzheimer’s disease. When people reach a certain age, there is a gradual decline in memory after middle age, and a small number of patients with memory loss and forgetfulness may gradually develop dementia in middle and old age. But not all forgetful patients will become Alzheimer’s. How to identify whether forgetfulness is a benign amnesia or a pathological process can be distinguished from the following points: 1. Benign amnesia may have little impact on daily life. People with benign amnesia will feel very distressed about their memory loss and will think of many ways to remind themselves, such as carrying a pamphlet or making a list for shopping by themselves. By reminding themselves in various small ways, they are able to maintain their work and life normally. The memory loss does not have a serious impact on daily life; 2. People with benign amnesia can usually recall things after reminders even if they sometimes do not remember them; 3. Pathological amnesia is not so optimistic. Patients with pathological amnesia usually forget things that they may not recall even if they are reminded, and will repeatedly say the same things over and over again, ask the same questions over and over again, and immediately fail to remember things they have just done. This kind of amnesia may cause great distress to friends and family, but the patient himself does not feel distressed. 4. The patient may also show signs of other diseases, such as paralysis of the limbs and tremors of the hands and feet, suggesting the possibility of other neurodegenerative diseases.