Tobacco Use Disorder is a medical condition characterized by an individual's inability to stop using tobacco products despite experiencing negative health effects. This disorder can manifest through cravings, withdrawal symptoms, and continued use despite awareness of the risks, such as lung cancer and heart disease. The disorder is often diagnosed using criteria from the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), which includes factors like tolerance and unsuccessful attempts to quit. Treatment options may involve counseling, medications, and support groups to help individuals overcome their dependence on tobacco and improve their overall health.