According to World Health Organization (WHO) definition, mental health is a state of well-being in which every individual could potentially cope with the stressors and work productively for his/her own community (
1). About one fifth of the world's children and adolescents from different cultures have mental disorders or problems and about half of mental disorders begin at the first years of adolescence (
2).
Iran has very young population. In recent years, researchers paid some attention to adolescents, so that several studies conducted regarding mental health among this age group living in different cities of Iran (
3-
6). In a school-based study in Tehran, 19.5% of adolescents aged between 17 and 18 years old suffered from mental health problem (
3). An epidemiological survey of psychiatric disorders in Iran has been reported the prevalence of psychiatric disorders as 9.07% among Iranian adolescents aged 18 -25 years (
6). It seems that the rate of mental health problems of adolescents in different cities of Iran might be different. In addition, mental health in young adolescents could be regarded as a risk factor for psychological disorders such as antisocial behaviors, criminal activities, suicidal behaviors, substance abuse, depression, and eating disorders (
2,
7), so estimating the rate of mental health problems among adolescents becomes very important task.