Studies on mental health service use among juvenile violent offenders prior to their acts of violence are sparse. Mostly, their service use seems to be short-term, although there may have been several service periods. Little is known about how they have perceived those services. Using a qualitative content analysis on data from forensic psychiatric examination statements, we studied discontinuities in the use of mental health services of 15-22-year-old violent Finnish offenders and descriptions of their perceptions of those services. There were several types of discontinuities: limited youth engagement and subsequent dropping out from services, or partial or total refusal of the proposed examinations or treatments. Most discontinuations were instigated by the youth themselves, followed by the parents and the service system. The subjects had perceived mental health services to be not beneficial for the most part, although some experienced benefits from medication. When treating children and adolescents with behavioral symptoms clinicians should identify the early signs of the process of disengagement from treatment and pay attention to the perceptions of the treatment of both the youth and their parents. Also, more research is needed on the user experience of mental health services among violent offenders, as well as factors relating to discontinuities along their mental health service path.