When it comes to children's mental health, a variety of resources exist whose mission is to educate and connect children, teens and families to services as soon as possible.
Common mental health conditions among youth include but are not limited to: Depression, Bipolar disorders, Suicidality, Anxiety, Substance Abuse Disorders, Attention Deficit Hyperactivity Disorder (ADHD), Oppositional Defiance and Conduct Disorder, Autism Spectrum Disorders, Post-Traumatic Stress Disorder (PTSD), Eating Disorders, Schizophrenia and self injury. Additional issues (e.g. bullying, social or familial stress, and LGBTQ) also can create stress and the need for supportive counseling.
Government sponsored organizations (below) typically provide research-based summaries of warning signs and symptoms of mental health conditions to help individuals and families determine when support services are needed.
The American Psychological Association (APA) offers a range of educational and practical resources for children's mental health.
How to Find Mental Health Care for Your Child, by Ellen B. Braaten, PhD.; Part of the APA Lifetools Book Series.
See APA's article "Why is Children's Mental Health Important?"