Where do lice hide in the head? - briefly
Lice hide on hair shafts near the scalp, especially behind the ears, at the nape of the neck, and on the crown where warmth and humidity are greatest. They also occupy the hairline and areas where hair is dense, allowing easy attachment.
Where do lice hide in the head? - in detail
Lice occupy the scalp region where temperature and humidity are optimal for survival. They remain on the hair shaft rather than burrowing into skin, positioning themselves close enough to feed but far enough to avoid detection.
- Hair shaft near the scalp – most adults reside within 1 cm of the scalp, where blood flow provides heat and moisture.
- Hairline and frontal fringe – the forward edge of the hair offers easy access to the scalp and is often less disturbed by combing.
- Behind the ears – this recessed area retains warmth and is less exposed to mechanical removal.
- Nape of the neck – the posterior scalp is densely covered with hair, creating a protected micro‑environment.
- Hair follicles – lice cling to the shaft at the follicular opening, anchoring themselves with claws designed for hair strands.
- Nits attached to hair – eggs are cemented within 1 mm of the scalp, ensuring the emerging nymphs have immediate access to the optimal zone.
These locations share common characteristics: proximity to the scalp for temperature regulation, high humidity, and minimal interference from routine grooming. Effective treatment must target each of these zones to eradicate the infestation completely.