Adolescence characterise frequent psychical crisis which are result of biological development, looking for own identity, changes in family relation and many socio-cultural influences. Bosnia and Herzegovina is a country with postwar society, currently going through transition period. Therefore various risk factors for drug abuse can be found here, such as: economical, social and health.

The main objective was finding how many adolescents had risk behavior and its subsequences.

Research has done in urban and rural areas of Sarajevo canton, involved 368 adolescents: male 170, female 198, aged 12-17 equal urban and rural distribution. In research used risk behavior questionnaire Q 2004 (K.B.Kelly 2000).

Out of total number of individuals in the study 25.8 percent was cigarette smokers, 39.4 percent consumed alcohol, 2.2 percent consumed marijuana.

Among group who use tobacco 33.7 percent have fight twice or more in the last two years; suicidal thoughts: 36.8 percent. Similar results were found among individuals who abuse alcohol: fighting 44.8 percentt: suicidal thoughts 32.4 percent. Among youngsters who abuse marijuana: fighting: 87.5 percent, suicidal thoughts 50.0 percent.

Bad score in school had 12.6% individuals who smoke, and 21.5% are truant. Similar results were among adolescents who drink alcohol: 10.3% had bad school performance and truant was 17.9%. Among marijuana group: bad score 12.5% and truant was 87.5%.

These results were compared with adolescents who don't abuse drug.

Adolescents tend to abuse psychoactive substances in developing countries. These results could be used to develop an appropriate prevention strategy.