Can brain retardation be cured?

The cure rate of brain retardation is relatively low, but after medical intervention and treatment or partial effect. There are some mild brain retardation and even can be cured, but most patients tend to improve on treatment, it is difficult to be completely cured. Brain retardation, generally depends on what causes, mainly including congenital and acquired causes. Congenital causes are relatively difficult to treat. Early screening is needed to assess the extent of developmental delay. Acquired causes are identified and removed. Drugs used to improve brain function are helpful in improving clinical symptoms.