Usually the person who have difficulty with speech like stammering, misarticulation, aphasia, congenital deaf children, Downs syndrome children, mentally retarded children, children with nasal twang, puberphonia etc, require Speech therapy. Such persons are given tips how to pronounce words clearly, how to form and give meaningful sentences, etc. Speech therapy is regular process and require days to months to years, depending on the severity of speech problem. Results with speech therapy are very encouraging and promising.