Background. Adolescence is characterized by a sensitivity to issues of
attractiveness. With dermatologic conditions, this may adversely affe
ct early detection and compliance. Methods. A cross-sectional study wa
s carried out on a multistage stratified random sample of 647 adolesce
nt schoolboys in Abha, Saudi Arabia, to determine the prevalence of sk
in diseases. The age of the boys ranged from 11 to 19 years with an av
erage of 15.3 +/- 1.9 years. Results. It was found that 19.8% of the c
hildren were affected by one form or another of transmissible skin dis
eases (TSD). The most common types were: pediculosis capitis (9.6%), v
erruca vulgaris (3.9%), and tinea pedis (1.9%). The prevalence of TSD
increased significantly as the age decreased and as the crowding index
increased. As for nontransmissible skin diseases, acne vulgaris was t
he most prevalent disease (56.3%). The prevalence and severity of acne
increased significantly as the age increased. Conclusions. The findin
gs indicate the need to develop regional intervention programs at the
school level. Appropriate continuing medical education programs for sc
hool health workers in the region are mandatory to achieve this goal.