How can you tell when lice appeared on a child? - briefly
Typical signs are persistent scalp itching and the presence of tiny, oval nits or live lice attached close to the scalp. Inspect the hair by parting strands and examining the base for these eggs and insects.
How can you tell when lice appeared on a child? - in detail
Detecting the first signs of a head‑lice infestation in a child requires close observation of the scalp and hair. The following indicators are reliable markers:
- Small, white or translucent eggs (nits) attached firmly to the base of hair shafts, usually within a half‑inch of the scalp. Nits are immobile and may appear as tiny specks resembling dandruff.
- Live insects, about the size of a sesame seed, moving quickly across the scalp or clinging to hair strands. They may be brown or gray and are most active in low light.
- Persistent itching, especially after a few days, caused by an allergic reaction to lice saliva. The itch is often localized to the neck, ears, and back of the head.
- Small red bumps or sores resulting from scratching, which can become infected if left untreated.
- Unusual hair loss in localized patches where lice have been removed or where the scalp has been irritated.
A systematic examination improves accuracy:
- Separate a small section of hair close to the scalp, using a fine‑toothed lice comb on wet hair. The comb should be drawn from the root to the tip in a single, steady motion.
- Inspect the comb and hair under good lighting, preferably with a magnifying lens. Look for nits that are firmly cemented at a 45‑degree angle to the hair shaft.
- Repeat the combing process across multiple sections of the head, including the nape, behind the ears, and the crown, where lice tend to congregate.
- If live lice are observed, note their number and location; even a single adult indicates an active infestation.
- Document any secondary skin irritation, as this can guide treatment choices and prevent complications.
Early detection hinges on routine checks, especially after known exposure to other children or shared items. Prompt identification allows for immediate treatment, reducing the risk of spread and minimizing discomfort for the child.