Aphasia in adults can be characterized by two main aspects: speech production and speech comprehension, and often involves difficulties in listening, speaking, reading, writing, and calculating. 1. Auditory comprehension disorder: Auditory comprehension disorder is a common symptom of aphasia, which means that the patient’s ability to understand spoken language is reduced or lost. Depending on the type and degree of aphasia, there are different levels of comprehension of words, phrases, and articles. 2. Oral expression disorder: Generally, the spoken language of aphasia is categorized into fluent and non-fluent according to the characteristics of the patient’s conversation. 3. Dyslexia: Impaired reading ability due to brain lesions is called dyslexia. Reading includes reading aloud and comprehension of words, which can be separated, i.e., the patient cannot read aloud but can understand the meaning of words, or can read aloud correctly but does not understand the meaning of words, or both. 4. Dysgraphia: commonly seen in the following manifestations: ① dysgraphia: manifested as complete dysgraphia, unable to form words. ② dysgraphia: the performance of the strokes to add or reduce, or write the word strokes all wrong. ③ Mirror image writing: that is, the writing of the word left and right reversed, like looking in the mirror and so on. It is recommended that patients seek timely medical treatment, standardized treatment under the guidance of the doctor, so as to avoid delaying the condition.