10 Autoimmune Diseases That Vary in Prevalence Across Populations

Autoimmune diseases represent a fascinating intersection of genetics, environment, and population dynamics, creating a complex mosaic of prevalence patterns that vary dramatically across different ethnic groups, geographic regions, and populations worldwide. These conditions, where the immune system mistakenly attacks the body's own tissues, affect millions globally, yet their distribution is far from uniform. From the higher rates of multiple sclerosis in Northern European populations to the increased prevalence of systemic lupus erythematosus in African American women, these variations reveal intricate relationships between ancestry, environmental factors, and disease susceptibility.