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A somatic symptom disorder, formerly known as a somatoform disorder,〔(2013) "(Somatic Symptom Disorder Fact Sheet )" dsm5.org. Retrieved April 8, 2014.〕〔"(DSM-5 redefines hypochondriasis )" mayoclinic.org. Retrieved April 8, 2014.〕〔"(Somatic Symptom and Related Disorders )" psychiatryonline.org. Retrieved April 8, 2014.〕 is a category of mental disorder included in a number of diagnostic schemes of mental illness, including the DSM-5. The diagnosis requires physical symptoms that suggest physical illness or injury – symptoms that cannot be explained fully by a general medical condition or by the direct effect of a substance, and are not attributable to another mental disorder (e.g., panic disorder). In people who have been diagnosed with a somatic symptom disorder, medical test results are either normal or do not explain the person's symptoms, and history and physical examination do not indicate the presence of a known medical condition that could cause them, though it is important to note that the DSM-5 cautions that this alone is not sufficient for diagnosis.〔 The patient must also be excessively worried about their symptoms, and this worry must be judged to be out of proportion to the severity of the physical complaints themselves. A diagnosis of somatic symptom disorder requires that the subject have recurring somatic complaints for at least six months.〔 Symptoms are sometimes similar to those of other illnesses and may last for years. Usually, the symptoms begin appearing during adolescence, and patients are diagnosed before the age of 30 years. Symptoms may occur across cultures and gender.〔 Other common symptoms include anxiety and depression.〔 However, since anxiety and depression are also very common in persons with confirmed medical illnesses, it remains possible that such symptoms are a consequence of the physical impairment, rather than a cause. Somatic symptom disorders are not the result of conscious malingering (fabricating or exaggerating symptoms for secondary motives) or factitious disorders (deliberately producing, feigning, or exaggerating symptoms). Somatic symptom disorder is difficult to diagnose and treat. Some advocates of the diagnosis believe this is because proper diagnosis and treatment requires psychiatrists to work with neurologists on patients with this disorder.〔 ==Types== Somatic symptom disorders are a group of disorders, all of which fit the definition of physical symptoms similar to those observed in physical disease or injury for which there is no identifiable physical cause. As such, they are a diagnosis of exclusion. They are recognized in the Diagnostic and Statistical Manual of Mental Disorders of the American Psychiatric Association as the following:〔 *Conversion disorder: A somatic symptom disorder involving the actual loss of bodily function such as blindness, paralysis, and numbness due to excessive anxiety *Illness anxiety disorder: A somatic symptom disorder involving persistent and excessive worry about developing a serious illness. This disorder has recently gone under review and has been altered into three different classifications. *Body dysmorphic disorder: wherein the afflicted individual is concerned with body image, and is manifested as excessive concern about and preoccupation with a perceived defect of their physical appearance. *Pain disorder *Undifferentiated somatic symptom disorder – only one unexplained symptom is required for at least 6 months. Included among these disorders are false pregnancy, psychogenic urinary retention, and mass psychogenic illness (so-called mass hysteria). *Somatoform disorder Not Otherwise Specified (NOS) The ICD-10 classifies conversion disorder as a dissociative disorder. Somatization disorder is a mental disorder was recognized in the DSM-IV-TR classification system, but in the latest version DSM-5, it was combined with undifferentiated somatoform disorder to become ''somatic symptom disorder'', a diagnosis which no longer requires a specific number of somatic symptoms. Still, ICD-10, the latest version of the International Statistical Classification of Diseases and Related Health Problems, still includes somatization syndrome.〔(【引用サイトリンク】title=ICD-10 Version:2015 )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「somatic symptom disorder」の詳細全文を読む スポンサード リンク
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