How can you find out if a child has lice on their head? - briefly
Inspect the scalp and hair closely, looking for live insects or tiny, oval nits attached within a half‑inch of the skin; then run a fine‑tooth lice comb through wet hair from the roots to the ends to confirm their presence.
How can you find out if a child has lice on their head? - in detail
Detecting a head‑lice infestation requires a systematic visual check and tactile examination. Begin by placing the child in a well‑lit area; natural daylight or a bright lamp provides the best contrast. Separate the hair into small sections, starting at the crown and moving outward. Use a fine‑tooth comb or a lice detection comb, pulling each strand straight to expose the scalp.
While combing, look for live insects, which are about the size of a sesame seed and move quickly. Also examine the comb teeth after each pass; any captured insects or shell‑like nits attached to the hair shaft indicate an infestation. Nits appear as oval, white or yellowish bodies cemented close to the scalp; they are typically found within ¼ inch of the skin.
Additional signs include persistent itching, especially after warm showers, and red, irritated patches on the scalp. Frequent scratching may cause secondary infections, which can be identified by swelling or pus.
If visual evidence is inconclusive, a professional inspection using a hand‑held magnifier or a laboratory microscope can confirm the presence of lice or viable nits. Some pediatric clinics offer rapid screening with specialized equipment.
To avoid cross‑contamination, clean the comb with hot water and soap after each use, and wash any clothing or bedding that may have been in contact with the child’s head. Repeat the inspection every 2–3 days for two weeks, as newly hatched lice may emerge after the initial check.