The aim of this study is to Detect the influence of the family history of stuttering (distance of relative) on the onset and severity of stuttering in children in these families. Also to explore developmental differences among young stutterers.

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

50 stuttering childern, age between 7 and 15 years, with an IQ =80 or more