It is a speech disorder in which the flow of speech is disrupted by involuntary repetitions and prolongations of sounds, syllables, words or phrases. It is a complex condition in which there are pauses that interrupt the flow and timing of the speech. It is common, especially in children.
- Neurogenic or psychogenic
- Family genetics
- Environment and physical factors
- Difficulty starting a word, phrase or sentence
- Brief silence for certain syllables or words or pauses
- Lip tremors
- Excessive blinking