Stammering or Stuttering is a speech problem which occurs when the speaker is not able to maintain a smooth forward flow of speech and experiences recurrent blocks in the production of speech sounds in conversational speech, particularly when excited or under psychological stress. A person who stammers often has difficulty in smoothly coordinating breathing exhalations during speech caused by lack of synchrony between his thoughts and his speaking machine. Most persons who stammer attempt to avoid or substitute particular words and situations. The problem has both physical and psychological overtones. Stammering is not a disease but an undesirable speech habit with causes havoc with the sufferer’s self-confidence.