The patient’s inability to speak is clinically referred to as speech inability. It is mainly considered from the following aspects. The first is the patient’s psychological factors, such as mental stimulation, such as being frightened, will lead to the patient’s inability to speak. The second one is the pharyngeal lesion, which can be seen in the ENT clinic to find out if there are any related causes. The third is to consider brain problems, such as cerebrovascular disease or intracranial occupancy, which affects the patient’s language center and can lead to difficulty in speaking, which can be manifested as difficulty in expressing or understanding speech, and in severe cases, the patient may lose the ability to speak. So patients suddenly can not speak, it is recommended that you should go to the hospital in time to improve the examination, identify the cause of the disease, timely symptomatic treatment.