Human Head Louse (Nits)

The scalp and hair of humans, primarily behind the ears and near the neckline.

Obligate blood feeders, consuming human blood several times a day.

Nits are eggs glued firmly to hair shafts. They cannot jump or fly; transmission occurs via direct head-to-head contact.

Causes intense itching and scalp irritation; does not transmit disease but can lead to secondary skin infections from scratching.