Mental health is the overall robustness of how a child thinks, regulates their feelings, and behaves in the world. This class expands this definition and examines how disordered patterns of thinking, feeling, and behaving can cause distress and disrupt a child’s ability to function well in a clinical environment like a hospital. This session describes the most prevalent diagnoses in the child and adolescent population with examples of signs and symptoms. The session concludes with some general notes about how mental health disorders and challenges are treated by mental health professionals.