Trauma is a psychological and emotional response to a distressing event or situation. It can be caused by physical, emotional, or psychological harm, and can have long-lasting effects on a person’s mental health. Symptoms of trauma can include flashbacks, nightmares, difficulty sleeping, difficulty concentrating, and feelings of guilt, shame, or fear. Trauma can also lead to depression, anxiety, and post-traumatic stress disorder (PTSD). Treatment for trauma can include cognitive-behavioral therapy, psychotherapy, and medication.