Human Itch Mite

Scientific Name: Sarcoptes scabiei var. hominis

Order & Family: Order: Sarcoptiforms, Family: Sarcoptidae

Size: Microscopic; females are approximately 0.30 to 0.45 mm long, while males are about half that size.

Natural Habitat

The upper layer of human skin (the epidermis), specifically in burrows created by the female mite.

Diet & Feeding

Feeds on human skin cells and extracellular fluid found within the epidermis.

Behavior Patterns

The female mite burrows into the skin to lay eggs. Once the eggs hatch, larvae travel to the skin surface. It spreads through prolonged direct skin-to-skin contact.

Risks & Benefits

Risks: Causes scabies, characterized by intense itching and a pimple-like rash. Scratching can lead to secondary bacterial skin infections like sores. It provides no ecosystem benefits.

Identified on: 2/20/2026