Many children go through a period of normal dysfluency between the ages of 2 and 5 years. The frequency of dysfluency can be 10%, sometimes greater. The dysfluencies are usually¬† word or phrase repetitions and interjections. The word is easily repeated just¬† once or twice. The child does not demonstrate any tension in their speech and is often unaware of their difficulty. It has been suggested that the cause of this dysfluency may be a combination of increases in language development, development of speech motor control, and environmental stresses that can occur in typical busy families. Some children “outgrow” these dysfluencies, others do not.

Fluent speech is smooth, forward-moving, unhesitant and effortless speech. A “dysfluency” is any break in fluent speech. Everyone has dysfluencies from time to time. “Stuttering” is speech that has more dysfluencies than is considered average.