Paranoid Personality Disorder
Information on paranoid personality disorder (PPD), a mental health condition marked primarily by distrust of others.
Mental Health and Rumination Disorder
Rumination disorder is an uncommon eating disorder usually in infants and young children. Learn more.
Reactive Attachment Disorder
Reactive attachment disorder (RAD) occurs in children who have been neglected and are unable to form a healthy emotional attachment with their primary caregivers.
Oppositional Defiant Disorder
WebMD explains the causes, symptoms, and treatment of oppositional defiant disorder, or ODD, which affects children and teens.
Mental Health and Delusional Disorder
Delusional disorder, previously called paranoid disorder, is a mental disorder in which a person cannot tell what is real from what is imagined. Learn more from WebMD about the causes, symptoms, and treatment of this illness.
Mental Health: Depression in Children
Childhood depression is different from the normal "blues" and everyday emotions that occur as a child develops. Learn more about what depression in children looks like.
Mental Health and Conduct Disorder
Conduct disorder is a serious behavioral and emotional disorder that can occur in children and teens. Learn more.
WebMD explains the causes, symptoms, and treatment of Munchausen syndrome, a disorder in which a person repeatedly acts as if he or she has a physical or mental illness when he or she is not really sick.
Binge Eating Disorder Causes and Prevention
Find out from WebMD what causes binge eating disorder and how it might be prevented.
Body Dysmorphic Disorder
People with body dysmorphic disorder (BDD) are preoccupied with an imagined physical defect or a minor defect that others often cannot see. WebMD explains the causes, symptoms, and treatment of BDD.