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How long mites can survive without a host is a deceptively simple question with a complex answer. “Mites” is a broad term that covers thousands of species with very different ecologies: some are obligate parasites that spend almost all of their lives on a host animal or human, others are free‑living detritivores that thrive in…

Demodex mites are microscopic arachnids that live on human skin, primarily inhabiting hair follicles and sebaceous (oil) glands. Two species — Demodex folliculorum and Demodex brevis — are most commonly found on people. They are tiny (fractions of a millimeter long), largely nocturnal, and feed on sebum, dead skin cells and follicular debris. While Demodex…

Spider mites are tiny arachnids related to spiders and ticks, most often belonging to the family commonly called spider mites (for example, the two-spotted spider mite, Tetranychus urticae). They are usually no more than a fraction of a millimeter long and are difficult to see with the naked eye except as tiny moving dots or…

When people talk about “mites” in the home they are usually referring to two very different problems: bird mites and dust mites. Though both are tiny arthropods that can cause discomfort, they differ in biology, typical locations, the health problems they produce, and—crucially—how you should treat them. Bird mites are parasitic on birds (and occasionally…

House dust mites are microscopic arthropods that thrive in the warm, humid microenvironments found in bedding, upholstered furniture, carpets and soft toys. Because they absorb moisture from the air rather than drinking freely, relative humidity (RH) is one of the most important environmental factors controlling their activity, reproduction and survival. Understanding the humidity threshold at…

Dust mites are microscopic relatives of spiders that thrive in warm, humid indoor environments and feed on dead skin flakes. They themselves are only visible under a microscope, but their bodies and especially their fecal particles are potent triggers for allergic rhinitis and asthma. Because these allergenic particles accumulate in carpets, upholstery, and bedding, homeowners…

Dust mite allergy is one of the most common indoor allergic conditions, and yet its symptoms are often mistaken for frequent colds, chronic sinus problems, or worsening asthma. Dust mites are microscopic relatives of spiders that thrive in warm, humid indoor environments—especially bedding, upholstered furniture, carpets, and stuffed toys—where their droppings and body fragments become…

Household mites — most commonly dust mites, and less commonly stored-product or bird/fowl mites — are microscopic arthropods that live in warm, humid environments and feed on skin flakes, fabric fibers or stored foods. Because they are too small to see unaided, their presence is inferred from the environments they favor (mattresses, bedding, carpets, upholstered…

Dust mites are microscopic arachnids that live in the soft, warm environment of our bedding, feeding mainly on flakes of human skin. They don’t bite, but their feces and body fragments are potent indoor allergens that can trigger sneezing, itchy eyes, nasal congestion and asthma attacks in sensitive people. Because mattresses, pillows and blankets provide…

Many people who wake up sneezing, notice a persistent cough, or find red, itchy bumps on their skin suspect “mites” — but not all mites cause the same problems, and how you identify the culprit determines the right treatment. Dust mites (commonly Dermatophagoides species) are microscopic arachnids that live primarily in bedding, upholstery and carpets…