What signs indicate that you have lice? - briefly
Intense scalp itching, particularly after a night’s sleep, and the appearance of tiny white or brown eggs (nits) attached close to the scalp are primary signs. Live lice may also be visible moving among the hair.
What signs indicate that you have lice? - in detail
Lice infestations present several observable and sensory cues that allow rapid identification. The most reliable indicators include:
- Small, mobile insects measuring 2–4 mm that move quickly through hair shafts.
- Oval, translucent eggs (nits) firmly attached to the base of each strand, typically within ¼ inch of the scalp.
- Red or pink spots on the scalp caused by repeated biting, often accompanied by a persistent itching sensation.
- Visible bite marks or tiny raised bumps on the neck, ears, and shoulders, where lice commonly feed.
- Excessive scratching leading to irritated or inflamed skin, sometimes with secondary infection signs such as crusting or pus.
Additional observations may aid diagnosis. A fine-tooth comb run over damp hair frequently dislodges nits and adult lice, leaving them on the comb teeth. In severe cases, hair may appear dull or tangled due to continuous movement of the parasites. Children’s clothing, hats, and bedding can also harbor lice, so finding live insects or eggs on these items supports the assessment.
Prompt detection relies on careful visual inspection of the scalp and hair, coupled with attention to the characteristic itching and bite patterns. Early recognition enables timely treatment and prevents further spread.