Hello, Stuttering, the most common fluency disorder, is an interruption in the flow of speaking characterized by repetitions (sounds, syllables,words, phrases), sound prolongations, blocks, interjections, and revisions, which may affect the rate and rhythm of speech. Half of people with this has genetical cause, (in simple if your elder family members have, then you may develop). Easy to manage in preschool or school age,, becomes difficult as ages. Speech therapists, will provide treatment for stammering. Please consult a speech therapist.