Stuttering is a disorder in which the flow of speech (fluency) is interrupted by repeated movements and fixed postures of the speech mechanism.
There are many different types of stutters. Children may experience one type of stutter or a variety of different types of stutters. Stuttering can be very different from one child to another. The types and characteristics of the stutter, and the occurrence of the stutter can vary significantly between children. A stutter for a child can be quite variable from one to another, as well as being variable within a person. Stuttering characteristics may change over time or remain the same.