Damage to different functional areas of the cerebral cortex can cause corresponding language disorders and manifest different symptoms, such as aphasia, dyslexia and dysgraphia. 1. Aphasia: Aphasia includes sensory aphasia, motor aphasia and fluent aphasia. Sensory aphasia is characterized by the inability to understand what others are saying and the inability to answer questions. Motor aphasia is characterized by a loss of the ability to organize language and an inability to express oneself verbally. Fluent aphasia is characterized by the inability to speak without understanding what is being said. 2. Dyslexia: Patients with damage to the angular gyrus may show dyslexia by not being able to read words, but other language functions are sound. 3. Dysgraphia: Dysgraphia manifests itself in the form of patients with no impairment of hand motor function, who can speak and read words but are unable to write. When the symptoms of damage to the language center appear, it is recommended to consult a doctor as soon as possible and actively treat the symptoms.