Mental Disorders (Part I) Anxiety Disorders Generalized Anxiety Disorder - a mental health disorder characterized by excessive and persistent worry and anxiety about everyday events or activities, even when there is no apparent reason for concern. Panic Disorder - a mental health disorder characterized by recurring and unexpected panic attacks, which are sudden episodes of intense fear or discomfort. Specific Phobia - a mental health disorder characterized by an intense and irrational fear of a particular object or situation, such as heights, spiders, or enclosed spaces. Social Anxiety Disorder - a mental health disorder characterized by intense and persistent fear of social situations, often accompanied by physical symptoms such as sweating and palpitations. Separation Anxiety Disorder - a mental health disorder characterized by excessive fear or anxiety about separation from a person or place that provides feelings of safety or security. Trauma and Stress Related Disorders Post-Traumatic Stress Disorder - a mental health disorder that can occur in people who have experienced or witnessed a traumatic event, such as a natural disaster, war, or violent crime. Acute Stress Disorder - a mental health disorder that can occur in people who have experienced or witnessed a traumatic event and involves symptoms such as anxiety, dissociation, and nightmares. Adjustment Disorder - a mental health disorder characterized by emotional or behavioral symptoms in response to a stressful life event, such as divorce or job loss. Obsessive Compulsive and Related Disorders Obsessive-Compulsive Disorder - a mental health disorder characterized by recurring and unwanted thoughts, images, or impulses (obsessions) that lead to repetitive behaviors or mental acts (compulsions) to reduce anxiety. Body Dysmorphic Disorder - a mental health disorder characterized by preoccupation with an imagined or slight defect in appearance, leading to significant distress or impairment in daily functioning. Hoarding Disorder - a mental health disorder characterized by persistent difficulty discarding or parting with possessions, regardless of their actual value, leading to accumulation of clutter that impairs living spaces. Trichotillomania - a mental health disorder characterized by recurrent pulling out of hair, leading to hair loss and significant distress or impairment in daily functioning. Excoriation Disorder - a mental health disorder characterized by recurrent skin picking resulting in skin lesions, leading to significant distress or impairment in daily functioning. Somatic Symptom and Related Disorders Somatic Symptom Disorder - diagnosed when a person has a significant focus on physical symptoms, such as pain, weakness or shortness of breath, to a level that results in major distress and/or problems functioning. Illness Anxiety Disorder - a mental health disorder characterized by excessive worry and preoccupation with having or acquiring a serious illness, despite minimal or no actual symptoms. Conversion Disorder - a mental health disorder characterized by the presence of neurological symptoms, such as paralysis or blindness, that cannot be explained by medical testing or examination. Factitious Disorder - a mental health disorder characterized by deliberate fabrication or exaggeration of physical or psychological symptoms for the purpose of assuming a sick role. Mood Disorders Major Depressive Disorder - a mental disorder characterized by persistent feelings of sadness or hopelessness, loss of interest or pleasure in activities, and other emotional, behavioral, and physical symptoms. Persistent Depressive Disorder (Dysthymia) - a mental health disorder characterized by a chronic and persistent low mood, with symptoms that are milder but more long-lasting than major depressive disorder. Bipolar I Disorder - a mental health disorder characterized by episodes of mania or hypomania alternating with periods of depression. Bipolar II Disorder - a mental health disorder characterized by episodes of hypomania alternating with periods of depression. Cyclothymia – mental disorder characterized by episodes consisting of hypomanic and depressive symptoms that do not meet the full criteria for bipolar or major depressive disorder. Eating Disorders Anorexia Nervosa - a mental disorder characterized by an intense fear of gaining weight or becoming fat, leading to severe weight loss and other physical and psychological symptoms. Bulimia Nervosa - a mental disorder characterized by episodes of binge eating followed by purging behaviors such as vomiting or use of laxatives. Binge Eating Disorder - a mental health disorder characterized by recurrent episodes of binge eating without purging behaviors, leading to increased weight Pica - mental disorder where a person compulsively swallows non-food items. Activity: Differential Diagnosis (DDx) Generalized Anxiety Disorder: DDx Panic Disorder Social Anxiety Disorder Obsessive-Compulsive Disorder Post-Traumatic Stress Disorder Adjustment Disorder with Anxiety Substance/Medication-Induced Anxiety Disorder Panic Disorder: DDx Generalized Anxiety Disorder Social Anxiety Disorder Specific Phobias Post-Traumatic Stress Disorder Substance/Medication-Induced Anxiety Disorder. Specific Phobia Social Anxiety Disorder Panic Disorder Obsessive-Compulsive Disorder Post-Traumatic Stress Disorder Social Anxiety Disorder: DDx Generalized Anxiety Disorder Panic Disorder Specific Phobia Obsessive-Compulsive Disorder Separation Anxiety Disorder: DDx Generalized Anxiety Disorder Panic Disorder Adjustment Disorder with Anxiety Post-Traumatic Stress Disorder. Post-Traumatic Stress Disorder: DDx Acute Stress Disorder Adjustment Disorder Anxiety Disorder Due to Another Medical Condition Substance/Medication-Induced Anxiety Disorder. Acute Stress Disorder: DDx Post-Traumatic Stress Disorder Adjustment Disorder Anxiety Disorder Due to Another Medical Condition Substance/Medication-Induced Anxiety Disorder Adjustment Disorders: DDx Major Depressive Disorder Post-Traumatic Stress Disorder Anxiety Disorder Bipolar I Disorder Bipolar II Disorder Obsessive-Compulsive Disorder: DDx Generalized Anxiety Disorder Panic Disorder Social Anxiety Disorder Body Dysmorphic Disorder Hoarding Disorder Trichotillomania Excoriation Disorder. Body Dysmorphic Disorder: DDx Obsessive-Compulsive Disorder Social Anxiety Disorder Generalized Anxiety Disorder Delusional Disorder Hoarding Disorder: DDx Obsessive-Compulsive Disorder Obsessive-Compulsive Personality Disorder Major Depressive Disorder Trichotillomania: DDx Obsessive-Compulsive Disorder Body Dysmorphic Disorder Tic Disorder Factitious Disorder Alopecia Excoriation Disorder: DDx Obsessive-Compulsive Disorder Skin Picking Disorder Substance/Medication-Induced Skin Picking Disorder Autism Spectrum Disorder Illness Anxiety Disorder: DDx Somatic Symptom Disorder Generalized Anxiety Disorder Panic Disorder Major Depressive Disorder Conversion Disorder: DDx Factitious Disorder Malingering Illness Anxiety Disorder Factitious Disorder: DDx Malingering Conversion Disorder Somatic Symptom Disorder Borderline Personality Disorder Major Depressive Disorder: DDx Bipolar I Disorder Bipolar II Disorder Adjustment Disorder with Depressed Mood Dysthymia Schizophrenia Bipolar I Disorder: DDx Bipolar II Disorder Major Depressive Disorder, Schizophrenia Schizoaffective Disorder Cyclothymic Disorder Bipolar II Disorder: DDx Bipolar I Disorder Major Depressive Disorder Cyclothymic Disorder Schizoaffective Disorder Persistent Depressive Disorder: DDx Major Depressive Disorder Adjustment Disorder with Depressed Mood Cyclothymic Disorder Schizoaffective Disorder