Stages of rosacea
| Stage | Designation | Description | |
| 0 | Preliminary stage of rosacea | Seizure-like, transient erythema (extensive reddening of the skin) | |
| I | erythematous-teleangiectatic | Rosacea erythematosa | Characterized by erythema and telangiectasias (vasodilatation); additional burning, stinging, and pruritus (itching) |
| II | papulopustular | Rosacea papulopustulosa | Additionally appearing papules (vesicles; no comedones!) and pustules (painful pustules) |
| II | glandular-hyperplastic | glandular-hyperplastic rosacea | Associated with diffuse connective tissue and sebaceous gland hyperplasia and phyme (nodular connective tissue growths):
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