In the United States, the rate of occurrence of rosacea seems to be on the rise. There is a lack of enough data on rosacea, with reported prevalence rates ranging from as little as 0.1% to as much as 22.00%. There is a higher incidence among adults of Northern European heritage with a fair skin. A recent study in Germany has shown that about 12% of their population is afflicted by this skin condition.
Rosacea is considered a skin disease but recent studies show that patients with rosacea had significantly higher odds of having allergies , respiratory diseases, gastrointestinal (GI) diseases, hypertension, urogenital diseases, and female hormone imbalances compared with control subjects without rosacea.