Acne is a very common worldwide skin problem [3]. It is most commonly experienced by teenagers, suggesting a hormonal influence. The fact that approximately 80% of teenagers have acne supports the hormonal hypothesis [3,4,1]. However, the various studies report prevalence in adolescents ranging from 28.9% to 91.3% [5-7]. During adolescence, acne tends to be more common in boys than in girls. It reportedly occurs among 95% to 100% of boys 16 to 17 years old and 83% to 85% of girls in the same age group [3]. In the US, acne is the fourth most common reason for seeking medical consultation among patients aged 11 to 21 years, and it accounts for 4% of all visits from patients aged 15 to 19 [7,8]. Kilkenny et al. recorded a prevalence of acne in 27.7% of students aged 10 to 12 and in 93.3% of adolescents aged 16 to 18 among a cross-sectional cohort of 2491 students in Victoria, Australia [9]. Acne vulgaris involves important anatomic, physiologic, biochemical, genetic, and immunologic factors [3]. It is known to have social consequences and a psychological impact on patients. Acne can produce anxiety, depression, and other psychological problems that affect patients' lives in ways comparable to life-threatening or disabling diseases [9]. In addition, acne can affect teenagers' social, vocational, and academic performance [10]. Aktan et al. reported that severe acne may lead to scarring and disfigurement [11,12]. Thus, in a study by Picardi et al. suicidal ideation was reported in a group of patients with acne [13]. According to Poli et al. people have a lot of wrong beliefs and misunderstandings about acne vulgaris [14]. His group recorded that 80.8% of 852 French people surveyed did not believe acne to be a disease but rather a normal phase of adolescence, although 69.3% agreed that it should be treated. Many of adolescents in the study thought that gender, excess weight, eating dairy products, and physical activity did not influence acne and that frequent washing could improve acne. In addition, people thought that eating chocolate and snacks, smoking cigarettes, sweating, not washing, touching or squeezing spots, eating fatty foods, using make-up, pollution, and menstruation could all worsen

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Skin diseases are common contributors to disease morbidity worldwide, particularly among school children. Although skin diseases are rarely lethal, they can have a significant impact in terms of treatment cost, absence from school, and psychological distress. Verruca vulgaris (cutaneous warts) is a common skin problem in children that commonly affects the hands and feet.Objectives: This study aimed to determine the prevalence of warts among primary school children in Saudi Arabia to compare characteristics between children with and those without warts and to investigate the possible risk factors associated with the development of warts.Method: This school-based, cross-sectional study conducted among primary school children in the cities of Madinah and Jeddah, Saudi Arabia included 730 children, 298 males and 432 females, with mean age 11.2 ± 1.5 years from 15 randomly chosen public and private primary schools: eight public schools (four boys' and four girls') and two private schools (one boys' and one girls' school) from Madinah and five girls' schools from Jeddah (four public and one private). We collected data via interviews and a questionnaire and through the examination of each child's hands, feet, head, and neck for warts. Results:Our results showed that the prevalence of warts was 9.04%. Approximately 65% of the children with warts were boys. Nearly two-thirds (64%) of the children were found to have acute diseases. Boys and girls significantly differed regarding de novo and recurrent warts, with a higher proportion of de novo warts observed in boys. Boys tended to have a greater number of warts than girls, with the warts being smaller in size and persisting for longer durations, although these differences were not statistically significant. Risk factors were shown to be male sex, attending a public school, a large family size, smoking, working, sports activities, and handling domestic and farm animals at home. Having a highly-educated father appeared to reduce the risk. Conclusion:This study revealed a high prevalence of warts among primary school children in Madinah and Jeddah and elucidated the risk factors for the development of warts. This may help in the development of effective health messages about methods for preventing skin diseases. Keywords: Human papilloma virus; Plane warts; Verruca vulgaris Aim and ObjectivesAim: The aim of this study was to provide recent and valuable information about the epidemiology of verruca vulgaris among primary school children in Madinah and Jeddah. The information obtained will help to fill a gap in Saudi medical literature concerning this common skin disorder among school children and to tailor a health education program to combat it.Objectives: To determine the prevalence of warts among primary school children.To compare the characteristics of the participating children between those with and those without common warts.To investigate the possible risk factors associated with the development of warts among children.

The immunomodulatory effect of vitamin D is well known, and some previous studies have found a potential association between vitamin D deficiency and psoriasis. If this is the case, correction of vitamin D levels could provide a simple, cost-effective treatment method for psoriasis patients. The aim of this case-control study was to confirm whether there was such an association. We also investigated several potential risk factors of psoriasis. We recruited 68 consecutive psoriasis outpatients at three hospitals in Saudi Arabia, as well as 68 control patients with dermatological conditions, and compared serum 25-hydroxycalciferol levels. However, we found no significant differences in vitamin D levels between the two groups. This finding supports similar negative findings of some previous studies, but further studies are needed to resolve this matter.

Background: Tanning and exposure to ultraviolet radiation is an important risk factor for melanoma and non-melanoma skin cancer and it is wide practice in developed countries. Aims & Objective:To study the prevalence of tanning behaviour among young female in Makkah, Saudi Arabia and the extent of their awareness of tanning habit. Materials and Methods: A self-administered questionnaire-based cross-sectional survey was carried out from 9 Feb 2013 until 22 June 2013 among 1000 female adolescents aged 14-23 years in Makkah shopping centers, secondary and intermediate female schools and medical and non-medical universities. Results: We found that 20.2 % of respondents reported tanning their skin. Most of our population (89.1%) is willing to stop tanning if the practice proves dangerous for their health. 60.2% of them feel should cut down on their tanning habit and 66.2% have heard that tanning behaviour is dangerous or unhealthy. Conclusion: Tanning use is prevalent among young female in Makkah region. However, they are aware about the dangerous of tanning behaviour.