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    Rosacea Causes

    Doctors don't know the exact cause of rosacea. Some doctors think rosacea happens when blood vessels expand too easily, causing flushing. People who blush a lot may be more likely to get rosacea. It is also thought that people inherit the likelihood of getting the disease.

    Though not well-researched, some people say that one or more of these factors make their rosacea worse:

    • Heat (including hot baths)
    • Heavy exercise
    • Sunlight
    • Winds
    • Very cold temperatures
    • Hot or spicy foods and drinks
    • Drinking alcohol
    • Menopause
    • Emotional stress
    • Long-term use of steroids on the face.

    People with rosacea and pimples may think the pimples are caused by bacteria. But no one has found a clear link between rosacea and bacteria.

    WebMD Public Information from the U.S. National Institutes of Health

    Reviewed on March 01, 2005

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