In retrospective study we characterize the suicidal behavior in 413 patients with stress related disorders as assessed by psychiatrists in Psychiatric Emergency Clinic at University Psychiatric Hospital. These patients were compared with 482 patients with anxiety disorders attending the same institution. We observed that 76 patients (18,4%) with stress related disorders had suicidal thoughts at the time of their evaluation and 21 patients (5.1%) had documented suicide attempts just before the evaluation. In the group of patients with anxiety disorders we observed that 50 patients (10,4%) had suicidal thoughts at the time of their evaluation and only 4 patients (0,8%) had been referred to UPOC after suicide attempt. Difference was significant (p<0.05). The aim of our next study was to evaluate negative life of suicide victims in a month before suicide. On the other hand aggression and impulsivity of suicide victims was evaluated. In the tree-year period 90 suicide victims (28 women and 62 men) in the central region of Slovenia were examined using the method of psychological autopsy. We compared subgroups of suicide victims with or without previous aggressive behaviour. We observed that suicide victims with previous aggressive behaviour have higher number of negative life events in a month before suicide and have expresses higher impulsivity then others. We also observed that suicide victims with previous aggressive behaviour directed toward others have more often previous suicide attempts than suicide victims without previous aggressive behaviour. These data support the hypothesis that suicidal behaviour is also influenced by previous stress events.