This document discusses common behavioral problems in children, including habit disorders, oppositional defiant disorder, conduct disorder, and other issues. It notes that behavioral problems are very common in children and can range from mild to more severe issues. The criteria for identifying a behavioral problem in a child include factors like age, frequency, severity, and effect on development. Common habit disorders discussed include breath holding spells, temper tantrums, tic disorders, nail biting, and thumb sucking. Oppositional defiant disorder and conduct disorder are also explained in detail, including their characteristics, epidemiology, clinical course, differential diagnosis, and comorbidities. The document provides an overview of approaches to managing behavioral problems in children.