Human Head Louse Egg (Nit)

Found exclusively on the human scalp, typically attached to hair shafts near the base of the neck and behind the ears.

Obligate parasites that feed exclusively on human blood several times a day.

The female louse glues eggs (nits) to hair shafts. They cannot jump or fly and are transmitted through direct head-to-head contact or sharing of personal items like hats or combs.

Causes intense itching (pruritus) and scalp irritation. While they do not spread disease, secondary bacterial infections can occur from scratching. They provide no known ecosystem benefits.