Oppositional defiant disorder (ODD) is a behavioral disorder that typically develops during childhood or adolescence. It is characterized by a pattern of persistent, angry, defiant, and disobedient behaviors toward authority figures, such as parents, teachers, and other adults.

Symptoms of ODD may include frequent temper tantrums, arguing with adults, refusing to comply with rules or requests, deliberately annoying others, blaming others for one's own mistakes, and being easily annoyed or angered. These behaviors often occur across a range of settings, such as at home, school, or in social situations.

Diagnosing ODD typically involves a comprehensive evaluation by a mental health professional. This may include interviews with the child, parents, and teachers, as well as behavioral assessments and observation. It is important to rule out other conditions that may be causing similar symptoms, such as ADHD, anxiety, or depression.

The causes of ODD are complex and not fully understood, but are thought to involve a combination of genetic, environmental, and social factors. Children who have experienced trauma or abuse, or who have a history of disruptive behavior or aggression, may be at higher risk of developing ODD.

Treatment for ODD typically involves a combination of individual and family therapy. The goal of therapy is to help the child learn more effective ways of coping with their emotions and managing their behavior. Parenting skills training and family therapy can also help parents and caregivers better understand their child's behavior and learn strategies for managing challenging behaviors at home and in other settings.