Self-injury
In general, more young people are treated for self-injury than any other age group. According to one Australian study 30% of teenagers say they have self-injured. It is more widespread among those with mental illness. One in four (25%) of teenagers with mental illnesses have self-harmed. Self-harm in females is most common between the ages of 15-24. Males are most likely to self-harm through the ages 25-34.