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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:

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  • 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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