What is Conversion Disorder

TL;DR: Conversion Disorder, also known as Functional Neurological Disorder (FND), is a condition where patients experience neurological symptoms—such as paralysis, blindness, or seizures—that cannot be explained by structural damage to the nervous system. It is a real and distressing condition where the brain’s "software" has trouble sending and receiving signals correctly, rather than the "hardware" being physically broken.

What are the symptoms of Conversion Disorder?

In Conversion Disorder, the body experiences physical symptoms that appear neurological but are not caused by a known disease like multiple sclerosis or a stroke. Because the brain is the control center, symptoms can manifest in any body system, though they most commonly affect movement or sensation. At DiseaseMaps.org, 21 members have shared their experiences with these symptoms, highlighting the diverse ways Conversion Disorder impacts daily life.

How is Conversion Disorder classified?

Clinicians typically categorize Conversion Disorder symptoms based on the function affected. Common presentations include:

• Motor symptoms: Weakness, paralysis, or tremors.


• Sensory symptoms: Loss of touch, vision, or hearing.


• Non-epileptic seizures: Episodes that look like epilepsy but do not show the characteristic electrical brain activity.


• Speech symptoms: Difficulty speaking (dysphonia) or slurred speech.

Who is typically affected by Conversion Disorder?

Conversion Disorder is estimated to affect approximately 4 to 12 per 100,000 people annually, though it is likely underdiagnosed. It can affect anyone at any age, but it is most frequently diagnosed in late adolescence and early adulthood. Research indicates that Conversion Disorder is more commonly reported in women than in men, though it occurs across all geographic regions and cultural backgrounds.

What causes Conversion Disorder?

The pathophysiology of Conversion Disorder involves a disruption in how the brain processes information. Rather than a physical lesion, it is viewed as a functional problem—the brain is struggling to regulate involuntary movements or sensory input. While psychological stress is often a trigger, many patients with Conversion Disorder report no specific trauma, emphasizing that this is a complex neurological phenomenon.

Next steps

• Consult a neurologist specializing in Functional Neurological Disorder (FND).


• Seek out a physical therapist experienced in neuro-rehabilitation.


• Connect with the community at DiseaseMaps.org to share experiences with others living with Conversion Disorder.


• Work with a clinical psychologist to develop coping strategies for the physical and emotional impact of symptoms.

Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Conversion Disorder overview.


• Orphanet: Information on rare neurological and functional disorders.


• FND Hope: The global patient-led organization for Functional Neurological Disorder.


• Cleveland Clinic: Expert clinical guidelines on the diagnosis of conversion symptoms.