Behçet Disease

Behçet Disease is indexed under Autoimmune & Inflammatory, Vasculitis. Also known as Behçet's, Behcet's syndrome, Silk Road disease.

US prevalence

~5-15 per 100,000 in US (much higher along Silk Road: Turkey, Iran, Japan) Source: ABF; ACR. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.

ICD-10-CM codes

M35.2

Typical onset

20-40 years

Course

episodic

Body systems

mucosal, ophthalmologic, cardiovascular, neurological

Sex differences

Equal overall; males more severe in some populations

Racial and ethnic differences

Much higher in Turkish, Iranian, Japanese, and other Silk Road populations

What this page does not establish

These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.

Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.

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