What Is Rosacea?
3. H. Pylori and Microscopic Mite
H. pylori is a type of bacteria that is naturally present within the human gut. The bacteria stimulate production of a peptide called bradykinin that is known to cause dilation of blood vessels. According to some medics, an increase in the numbers of H. pylori may cause rosacea to flare up.
A microscopic mite called Demodex folliculorum that is naturally present on human skin is also considered to play a part in the development of rosacea. Studies have found that people with rosacea have significantly higher numbers of the mite than those without. It is, however, unclear whether the mite causes rosacea or the mites increase in numbers during a rosacea flare up.
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