Background:  Scalp affection is common  in children,  especially in schoolchildren. The  objective  of this  study  was  to  assess  the  prevalence and  pattern   of scalp affection in primary school children in Sohag Province, Upper Egypt during educational  year from September  2009 to June 2010.

Methods: This study included pupils of different age groups between 6 to 12 years in 5 primary  schools  in Sohag Province.  Data collected  from  all subjects  included sociodemographic  data,  environmental,  and  housing  data.  Complaint,  medical history, family, and past history were obtained from all pupils and examination of the

scalp to detected lesions in school pupils.

Results: Eight hundred twnety-nine  of 3,100  pupils  (26.7%) had  scalp  affection: pediculosis capitis 356 (11.5%), cicatricial alopecia 163 (5.3%), dandruff 147 (4.7%), tinea capitis 96 (3.1%), impetigo 41 (1.3%), alopecia areata 13 (0.4%), hair loss 10 (0.3%), and psoriasis 2 (0.1%). 23.1% of pupils  were  affected by 1 scalp disease, while  3.6% affected  by  2  scalp  diseases.  The  highest  prevalence rate  of scalp affection (4.8%) was observed  in age group  (11-12) years. The highest prevalence rate of scalp affection was observed in girls (15.3%) compared to boys (11.4%). Scalp affection  among  urban  pupils  23.6% compared to rural pupils  3.1%. The lowest prevalence rate of scalp affection  was detected among  pupils  belonging  to high socioeconomic class 2.4%, while the prevalence rate 12.3% was observed  in low socioeconomic class and the prevalence rate 12% was observed  in middle socioeconomic class. The highest  prevalence rate  of scalp  affection  was among pupils belonging  to a large sized family (5 persons)  14.8% when  compared  to 1 belonging to a smaller family (5 persons) 11.9%. The highest prevalence rate of scalp affection was among pupils washing hair 1 to 3 times per week 17% while the lowest prevalence rate was detected among pupils washing hair 4 to 6 times per week 9.7%.

Conclusions: This study creates awareness and knowledge about the prevalence and patterns  of scalp  affection  in primary  school  children  in Sohag Province.  Child education  program could be advocated for propagating  hygienic habits in schools. Good  training  of  physician  and  community   health  workers  in  diagnosing  and managing common  dermatologic  conditions.  It is recommended to increase knowledge, attitude and practice among children regarding scalp diseases in school health programs.