Speech Therapy focuses on receptive language, or the ability to understand words spoken to you, and expressive language, or the ability to use words to express yourself. It also deals with the mechanics of producing words, such as articulation, pitch, fluency and volume. Adults may need speech therapy after a stroke or traumatic accident that changes their ability to use language; for children it generally involves pursuing milestones that have been delayed. Some children only need help with language; most others have problems with the mechanics of speech, and some need every kind of speech help. The professional in charge is called a speech-language pathologist or a speech therapist.



Speech-language pathologists work with people who cannot produce speech sounds or cannot produce them clearly; those with speech rhythm and fluency problems, such as stuttering; people with voice disorders, such as inappropriate pitch or harsh voice; those with problems understanding and producing language; those who wish to improve their communication skills by modifying an accent; and those with cognitive communication impairments, such as attention, memory, and problem-solving disorders. They also work with people who have swallowing difficulties.



Speech, language, and swallowing difficulties can result from a variety of causes including stroke, brain injury or deterioration, developmental delays or disorders, learning disabilities, cerebral palsy, cleft palate, voice pathology, mental retardation, hearing loss, or emotional problems. Problems can be congenital, developmental, or acquired. Speech-language pathologists use special instruments and qualitative and quantitative assessment methods, including standardized tests, to analyze and diagnose the nature and extent of impairments.