How can I check for lice on my own head? - briefly
Examine a dampened scalp using a fine‑tooth lice comb, moving from the roots toward the tips while separating sections of hair. Look for live insects or tiny, oval nits attached within ¼ inch of the hair shaft.
How can I check for lice on my own head? - in detail
To examine your own scalp for lice, begin by gathering a fine-toothed comb, a bright light source, and a white towel or paper. The comb should have teeth spaced no more than 0.5 mm apart; a specialized lice comb is ideal.
First, separate the hair into manageable sections. Part the hair from the crown toward the nape, securing each segment with a clip. Place the towel under the section to catch any debris.
Next, run the comb through the hair from the scalp outward, applying steady pressure. After each pass, wipe the comb on the towel and inspect the teeth. Look for live insects, which appear as small, tan or gray bodies about the size of a sesame seed, and for nits—oval, firm, and firmly attached to the hair shaft within ¼ inch of the scalp. Nits are typically yellowish or white; if they are easily brushed off, they are likely shed shells rather than viable eggs.
Repeat the combing process for every section, moving from the back of the head to the front and covering the entire scalp, including behind the ears and at the hairline. Perform the inspection in a well-lit area or use a handheld lamp to improve visibility.
If any lice or nits are detected, isolate the affected strands and repeat combing until no additional insects appear. Wash the comb in hot, soapy water after each use. Follow up with a second examination 7–10 days later, as newly hatched lice may emerge from eggs missed during the first pass.
Maintain a routine of weekly inspections, especially after contact with others who have reported infestations. Keep personal items such as hats, hairbrushes, and bedding separate and wash them in hot water (≥130 °F) to reduce the risk of re‑infestation.