Generally speaking, taking medication cannot restore the intelligence of patients with mental retardation, but in some cases it can achieve the effect of controlling the disease and slowing down the process of mental decline. Mental retardation is often caused by irreversible damage to the central nervous system due to a variety of causes, such as cerebral infarction and cerebral hemorrhage. Some degenerative brain diseases can also lead to mental retardation, such as severe Alzheimer’s disease. In addition, some congenital genetic disorders lead to abnormal brain development, and patients will show signs of mental retardation, which usually lasts for the rest of their lives. It is often difficult for patients to regain their mental ability through medication or rehabilitation, but the disease can be controlled and slowed down through active medication, etiologic treatment, and rehabilitation exercises. If this symptom occurs, it is recommended that the patient consult a doctor in time and standardize the treatment, so as not to cause adverse development of the disease.