A fluency disorder is a speech disorder characterized by disruptions in the flow, rhythm, and speed of speech. The most common fluency disorder is stuttering, where individuals may experience repetitions, prolongations, or blocks of sounds, syllables, or words. These disruptions can make it difficult to communicate effectively and may lead to frustration or anxiety in social situations. Other fluency disorders include cluttering, which involves rapid and/or irregular speech that can be difficult to understand. Treatment typically involves speech therapy, where strategies are taught to improve speech fluency and manage communication challenges.