Obsessive-compulsive and related disorders are mental health conditions characterized by persistent, unwanted thoughts (obsessions) and repetitive behaviors or mental acts (compulsions). Individuals may feel driven to perform these behaviors to reduce anxiety or prevent a feared event, even if they recognize that their thoughts and actions are irrational. These disorders include conditions such as Obsessive-Compulsive Disorder (OCD), Body Dysmorphic Disorder, and Hoarding Disorder. Treatment often involves therapy, such as Cognitive Behavioral Therapy (CBT), and sometimes medication to help manage symptoms and improve daily functioning.