Suicide being the second leading cause of death among college students, this article examined differences in psychological variables related to college students (21-34 years) in Psychology with teaching and with high suicidal ideation (BDI> 10). We evaluated the presence of suicidal ideation in these students (n= 40, 70% female, mean age 23.9 years, SD= 3,003) regarding impulse control, depression and hopelessness. The results showed that students with high hopelessness are more likely to have suicidal ideation, and the level of impulse control that prevents the transition from ideation to other more serious stages of suicide. The identification of psychological factors associated with suicidal ideation in college, can help prevent the transition from suicidal ideation to first suicide attempt.