demodex
Demodex is a genus of tiny parasitic mites in the family Demodicidae. The two species most commonly associated with humans are Demodex folliculorum and Demodex brevis. They are ectoparasites inhabiting the keratinized lining of hair follicles and sebaceous glands.
Morphology and life cycle: They are among the smallest arthropods visible only under magnification, measuring roughly
Prevalence and ecology: Demodex mites are common in humans, with colonization increasing with age; most healthy
Clinical relevance: In some individuals, high mite density or immune dysfunction can contribute to inflammatory conditions
Management: Treatment is usually reserved for symptomatic cases and may include topical acaricides (for example, permethrin