Communicating ability is one of the necessary social needs in human, and language is a critical part of daily connections and communications. Language is impaired by different central nervous system (CNS) diseases such as multiple sclerosis (MS). MS leads to a language disorder by creating some plaques in subcortical constructions such as naming problems, semantic errors, and circumlocutory naming errors, semantic paraphasia, nonfluent speech, and grammatical and syntactic problems such as reduced mean maximum length of sentences and the number of spoken words and impairment in high-level language skills
