Somatoform disorders are neurological disorders characterized by persistent fears or beliefs about the predominance of various somatic symptoms. The patient has repeatedly sought medical attention for these symptoms, and various medical tests have been negative, and none of the physician’s explanations have been able to dispel his or her doubts. Even if the patient does have some kind of somatic disorder, it does not explain the nature or extent of the symptoms or the patient’s notion of distress and predominance. These somatic symptoms are thought to be the result of psychological conflicts and personality tendencies, but for patients, they refuse to explore the possibility of a psychological etiology even if the symptoms are closely related to stressful events, life events, or psychological conflicts. Patients are often accompanied by anxiety or depression. Patients mostly seek medical attention for somatic symptoms, repeatedly state somatic discomfort, constantly request medical examinations, ignore negative results of repeated examinations, and are not convinced by repeated explanations of doctors that no organic damage or no pathophysiological mechanisms exist. Even if these symptoms are related to stressful events and psychological conflicts, patients still refuse to explore the psychological etiology, do not want to receive psychological treatment, and neither admit to having a mental illness.