How can you tell that you have gotten lice? - briefly
Look for live nits firmly glued to the hair shaft near the scalp and for small, moving insects, particularly around the nape and behind the ears. Persistent itching and tiny red puncture marks on the scalp further confirm an infestation.
How can you tell that you have gotten lice? - in detail
Lice infestations reveal themselves through several observable signs.
First, the scalp often feels itchy, especially after a few days of exposure. The itch results from an allergic reaction to lice saliva and intensifies when the hair is brushed or heated.
Second, visible nits (lice eggs) appear as tiny, oval specks attached to hair shafts. Nits are typically tan, brown, or gray and are firmly glued within a millimeter of the scalp. Their presence is confirmed by gently pulling a strand of hair; a nit will remain attached to the shaft, while a loose shell will slide off.
Third, live lice may be seen crawling on the scalp, hair, or behind the ears. Adult lice are about the size of a sesame seed, grayish‑white to brown, and move quickly. Using a fine‑tooth comb on wet, conditioned hair under bright light improves detection.
Additional indicators include small red bumps or sores caused by scratching, and occasional brown or black specks in clothing or bedding. These specks are often fecal matter from lice, which can stain fabrics.
To verify an infestation, follow a systematic inspection:
- Wet the hair thoroughly; apply a generous amount of conditioner to reduce tangling.
- Divide the hair into sections and run a fine‑tooth lice comb from the scalp to the ends, wiping the comb on a white paper after each pass.
- Examine the paper for nits or live insects; a single finding confirms the presence of lice.
- Repeat the process on the nape, behind ears, and any other densely haired areas.
If nits are found but no live lice, a recent infestation is likely; treatment should still proceed to prevent hatching.
Professional confirmation can be obtained from a healthcare provider, who may use a magnifying lens to identify the parasites. Laboratory analysis is rarely required.
Early detection relies on careful visual examination, attention to scalp irritation, and the presence of nits adhered close to the skin. Prompt identification enables effective treatment and limits spread.