Correlation of Family History, Age at Onset & Severity of Stuttering

Inclusion Criteria: * 1-Age: from 7 to 15 years old. 2-Gender: both sexes will be included in the study. 3-The participants are diagnosed as stutterers by an expert phoniatrician. 4-Children will be accepted only if full information is provided concerning the presence or absence of family history of stuttering, from both paternal and maternal sides of the family, and the age of onset of stuttering manifestations. 5-Mentality: IQ is 80 or more Exclusion Criteria: * 1-Age below 7 years or above 15 years. 2-Failure to provide full information concerning the presence or absence of family history of stuttering, from both paternal and maternal sides of the family, or age of onset of stuttering manifestations.. 3- IQ less than 80