Teen depression has only recently received serious attention, though it is a significant issue. Researchers have found depression in teens often co-occurs with other mental disorders like anxiety, ADHD, OCD, eating disorders, and substance abuse. Trauma increases the risk of developing depressive disorders, and depression commonly accompanies anxiety. Proper diagnosis and treatment of co-occurring illnesses may require psychotherapy, family support, education, and medication management, potentially long-term. Common symptoms include changes in appetite, sleep, energy, interests, and thoughts of suicide. Seeing a doctor promptly can lead to a careful diagnosis and appropriate treatment plan.