Which disorder is characterized by difficulties with fluency in speech?

The disorder characterized by difficulties with fluency in speech is Childhood Onset Fluency Disorder, commonly known as stuttering. This disorder specifically involves disruptions in the flow of speech, such as repetitions of sounds, syllables, or words, prolongations of sounds, and interruptions known as blocks. These fluency disruptions can lead to significant anxiety regarding speaking and may affect communication abilities.

In contrast, Social Pragmatic Communication Disorder primarily involves challenges in the social use of verbal and non-verbal communication, such as difficulty following rules for conversation or storytelling, rather than fluency issues. Language Disorder refers to difficulties in understanding and using language, affecting vocabulary and sentence structure, but it does not specifically address fluency. Speech Sound Disorder focuses on issues related to the articulation of words and sounds rather than fluency, as it encompasses problems with producing speech sounds correctly.