Can dementia be cured? I believe this is the question on many people’s mind. Today, let’s take a look at which dementia is treatable. 1, vascular dementia, especially in the north, vascular dementia is one of the common causes of dementia. 2, the incidence of dementia caused by infections such as syphilis and AIDS is increasing, but paralytic dementia can improve symptoms if detected and treated in time. 3. Tumors, especially those in the midline of the skull, cause dementia. Tumors in the midline thalamus and corpus callosum often have cognitive impairment as the first symptom. 4, limbic encephalitis. In the past, limbic encephalitis was considered to be a paraneoplastic syndrome; in recent years, with the development of immunology, it has been found that some limbic encephalitis is associated with abnormalities in the immune system, such as voltage-gated potassium channel autoantibody-associated limbic encephalitis, which is common in middle-aged and elderly people, often with cognitive impairment as the main symptom. 5. Dementia due to intoxication, of which alcohol is a common cause. Long-term alcohol abuse, in addition to damaging peripheral nerves, can also cause cognitive decline. 6. Cognitive impairment due to drug factors. Long-term use of certain anti-epileptic drugs can have an impact on cognitive function, such as phenytoin sodium, while newer anti-epileptic drugs have less impact on cognitive function. 7. Metabolic factors leading to dementia. For example, thyroid disease, especially hypothyroidism, can cause dementia. Metabolic disorders caused by liver and kidney insufficiency may also cause dementia, and protecting liver and kidney function can reduce symptoms. 8. Chronic subdural hematoma. Traumatic brain injury leading to chronic subdural hematoma often manifests clinically as dementia, which can be treated surgically by neurosurgery if necessary. 9, excessive attention to make the diet imbalance slide to the other extreme, may allow nutrition to become one of the factors of dementia again. Vitamin B deficiency, both of which can cause dementia, can improve dementia symptoms through vitamin supplementation. Diagnosis No matter how advanced imaging and laboratory tests are, or how genetic testing has become a reality, with the current level of medical care and the current situation in China, the etiology of dementia still requires a comprehensive judgment combined with medical history, clinical symptoms, signs, neuropsychological assessment, laboratory and imaging test results. 1. History questioning is crucial. The development pattern of different diseases is different. Some diseases can be judged by the family’s oral report, while others cannot, and require the doctor to personally “look and check” to determine whether there is a problem with the patient’s language expression and comprehension through subtle observation or communication with the patient; to judge the impaired memory and orientation based on communication with the patient; to judge the patient’s demeanor, speech and behavior and the degree of cooperation. The patient’s mental state. Also pay attention to personal history, some diseases such as vascular dementia, may have risk factors in cerebrovascular disease, and some diseases have family history. 2, to focus on neurological examination and neuropsychological examination. 3, laboratory and imaging tests are important to determine the cause. Genetic and pathological tests are more convincing to determine the cause, but genetic tests are costly and pathological tests are invasive and difficult to be widely accepted.