Which of the following is the most common psychiatric disorder?
As a group anxiety disorders are the most common psychiatric disorders, followed by mood disorders. When individual disorders are compared, the most common psychiatric disorder is "specific phobia" followed by "depression". Many a times, the question asked in exam does not have the option of either phobia or anxiety disorder, in that case the answer becomes depression.
Anxiety disorders
Schizophrenia
Depression
Mania
Neurotic, Stress Related and Somatoform Disorders