What is the name of the disorder where a patient has a single medically unexplained symptom?

The disorder characterized by a single medically unexplained symptom is known as Conversion Disorder. This condition typically presents with symptoms affecting voluntary motor or sensory functions that are inconsistent with or cannot be fully explained by medical or neurological conditions. The symptom can manifest in various ways, such as paralysis, tremors, or sensory deficits, and the key aspect is that the symptom is not intentionally produced or feigned.

In the context of this disorder, the individual experiences significant distress or impairment in social, occupational, or other areas of functioning due to the symptom, which is believed to be a psychological response to stressors or trauma. The critical differentiation from other disorders, such as Somatization Disorder, is that Conversion Disorder often involves a specific, single symptom rather than a pattern of multiple symptoms across various organ systems.

While Somatization Disorder involves multiple symptoms across different bodily systems that are medically unexplained, and Factitious Disorder includes symptoms that are intentionally produced to assume the sick role, Conversion Disorder focuses on the presence of one primary symptom. Hypochondriasis, now categorized under Illness Anxiety Disorder, refers to an excessive preoccupation with having or acquiring a serious illness, rather than presenting a single symptom.

Thus, the emphasis on a single unexplained symptom is what solid