Last updated: April 26, 2023
Rosacea is a chronic inflammatory skin disease that may be triggered by a number of factors (e.g., alcohol, stress). The etiology is unclear; however, the disease is more common in female, middle-aged, and light-skinned individuals. The disease presents with central facial erythema, telangiectasias, and papules/pustules. In severe cases, the nose develops a large, bulbous shape (rhinophyma). In contrast to acne, comedones are not present. Treatment options include the avoidance of triggers, topical agents (e.g., metronidazole, brimonidine) for mild disease and oral agents (e.g., metronidazole) for more severe disease.
Sex: ♀ > ♂ 
Age range: 30–60 years 
Epidemiological data refers to the US, unless otherwise specified.
The cause of rosacea is not entirely understood. It involves chronic inflammation of skin and is especially associated with triggers that increase body temperature.
The differential diagnoses listed here are not exhaustive.
- Small brown papules, especially around the mouth and eyes
- Granulomatous lesions may occur on their own, without other symptoms of rosacea
Histology: tuberculoid granulomas
All patients with rosacea and concurrent eye problems should have their eyes examined by an ophthalmologist.
We list the most important complications. The selection is not exhaustive.
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