Rosacea Review - Newsletter of the National Rosacea SocietyRosacea Review - Newsletter of the National Rosacea Society

demodex mites

Demodex Species May Affect Rosacea Severity

A small study in Russia recently examined the effects of different species of Demodex mites in rosacea. Researchers examined 212 patients in three groups: healthy controls, rosacea patients without mites, and rosacea patients with mites. They found that Demodex folliculorum mites were more commonly present in severe cases of papulopustular rosacea,while the other species that affects humans, Demodex brevis, was found to be more common on the skin of people with milder rosacea or healthy skin.

Chicken or Egg? Debate Continues

Demodex mites, the microscopic parasites that are normal inhabitants of facial skin, have long raised the question, "Which comes first, Demodex or rosacea?" as medical experts debate whether their increased numbers on rosacea patients are a cause or a result of the disorder. Now there may be some evidence that the "chicken" — Demodex mites — and not the "egg" comes first, according to a recent scientific report.

Reaction to Mites May Mimic Rosacea Signs

Some patients who have red scaly faces may in reality have an increased reaction to the Demodex mite rather than rosacea, according to Dr. Joseph Bikowski, clinical assistant professor of dermatology, Ohio State University.

Dr. Bikowski noted that he has treated more than 100 patients with this condition, which involved reaction to these microscopic mites that are normal inhabitants of human skin. In these cases, he reported that patients treated with a topical medication for Demodex cleared within two to four weeks and remained clear for one to two years.

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