
Community identification
Human Itch Mite
Sarcoptes scabiei var. hominis
- Order & Family
- Order: Sarcoptiformes, Family: Sarcoptidae
- Size
- Microscopic; females are approximately 0.30–0.45 mm long, males are about half that size.
Natural Habitat
The epidermis (outer layer of skin) of humans, specifically areas with folds like fingers, wrists, armpits, and genitals.
Diet & Feeding
Skin cells and fluid that results from the digestion of skin tissue using enzymes secreted by the mite.
Behavior Patterns
Adult females burrow into the upper layer of the skin to lay eggs. They move at a rate of 2-3 mm per day and lay 2-3 eggs daily during their 1–2 month lifespan.
Risks & Benefits
Causes Scabies, a highly contagious skin infestation characterized by intense itching and a pimple-like rash. Scratching can lead to secondary bacterial infections like impetigo or cellulitis.