Is rosacea caused by abnormal sebaceous gland growth or activity?

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Is rosacea caused by abnormal sebaceous gland growth or activity?

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No, the average rosacea sufferer has normal sebaceous glands (both in structure and activity). Numerous clinical studies have demonstrated that true rosacea does not involve the facial sebaceous glands. Please note that there is one exception to this rule — rosacea sufferers who develop rhinophyma (the bulbous red nose). After years of flushing, rhinophyma sufferers may experience inflammation and growth of the sebaceous glands around the nose.

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