Speech Therapy For Adults Speech therapy can be done in a variety of ways, depending on the disorder and the goals you want to achieve. Speech therapy benefits both children and adults by improving speech, language, and social skills. Symptoms of Speech Impairment: -Difficulties speaking clearly -Swallowing problems -Difficulties stringing words and phrases together -Difficulties reading and writing -Dry mouth -Lisping and stuttering -Persistent sore throat or vocal cord pain