If the elderly suddenly develop speech problems, the following conditions should be considered: 1. Cerebrovascular disease: Because of the numerous risk factors for cerebrovascular disease that exist in the elderly themselves, cerebrovascular disease can suddenly appear. Cerebrovascular disease has various manifestations, such as motor disorders, which manifest as inflexible limb movements, sensory disorders, numbness of limbs, and speech disorders. Language disorders can occur when the elderly suddenly do not speak well, and can appear to be unable to understand other people’s speech or to express themselves correctly. This situation is the most common; 2, related to age itself: because the elderly to a certain age, aging is the degenerative changes in the nervous system, will lead to the decline of language ability, there will be elderly speech incoherence, can not accurately or can not clearly express their own meaning. It is a very specialized neurological problem involving incoherent speech. Therefore, if an elderly person in the family suddenly develops dysphasia, he or she should promptly visit the neurology department of a regular hospital and undergo auxiliary examinations, such as cranial CT and cranial MRI, if necessary, to determine the cause of the sudden onset of dysphasia in the elderly.