Psychological disorders, often referred to as mental disorders or psychiatric disorders, are patterns of behavioral, emotional, or cognitive dysfunction that cause significant distress or impair an individual’s ability to function in daily life. Understanding these disorders is critical for providing effective interventions and support, as well as reducing stigma associated with mental health issues. Psychological disorders are diverse, ranging from anxiety and mood disorders to schizophrenia and personality disorders, each with distinct symptoms, causes, and treatment approaches. The classification of psychological disorders is often guided by diagnostic manuals such as the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders) and ICD-11 (International Classification of Diseases). These manuals provide standardized criteria to ensure consistency in diagnosis, which is crucial for both research and clinical practice. Disorders are generally categorized into several types, including anxiety disorders, mood disorders, psychotic disorders, personality disorders, neurodevelopmental disorders, and trauma- or stress-related disorders. Each category has subtypes with unique features, but comorbidity is common, where an individual may meet the criteria for multiple disorders simultaneously. Anxiety disorders are among the most common psychological disorders and are characterized by excessive fear, worry, and behavioral disturbances. Examples include generalized anxiety disorder (GAD), panic disorder, phobias, and social anxiety disorder. Individuals with anxiety disorders may experience physiological symptoms such as increased heart rate, sweating, trembling, and muscle tension. These disorders often arise from a combination of genetic predispositions, environmental stressors, and cognitive patterns that amplify fear responses. Early identification and intervention are crucial, as untreated anxiety disorders can significantly impair social, occupational, and academic functioning. Mood disorders, including depression and bipolar disorder, involve disturbances in an individual’s emotional state. Major depressive disorder is characterized by persistent sadness, loss of interest, feelings of worthlessness, and physical symptoms such as changes in appetite or sleep patterns. Bipolar disorder involves alternating episodes of mania and depression, with symptoms ranging from elevated mood, increased energy, and impulsivity during manic phases to low mood and lethargy during depressive phases. Biological factors, such as neurotransmitter imbalances and genetic vulnerability, often contribute to mood disorders, while psychosocial stressors can trigger or exacerbate symptoms. Treatment typically involves a combination of pharmacotherapy, such as antidepressants or mood stabilizers, and psychotherapy, including cognitive-behavioral therapy (CBT) and interpersonal therapy. Psychotic disorders,