Lice eggs (nits). These look like tiny yellow, tan, or brown dots before they hatch. Lice lay nits on hair shafts close to the scalp, where the temperature is perfect for keeping warm until they hatch. Nits look a bit like dandruff, but aren't removed by brushing or shaking them off.
Look for nits near hair follicle about ¼ inch from scalp. Nits (eggs) will be white or yellowish-brown. Nits are often more easily seen than lice, especially when the person has dark hair. Also look behind both ears and near the back of the neck.
Finding eggs (nits) without lice does not necessarily mean that there is an active infestation; nits can be found for months after lice are treated. Because lice lay eggs at the base of the hair shaft, the identification of nits within ¼ inch of the scalp suggests (but does not confirm) an active infestation.
Run your fingers along the hair shaft to see if you can easily move the suspected nit. If it truly is a nit it will not slip or fall off the hair shaft. If it does move, it most likely is not a nit as nits need to be pulled off the hair shaft with your finger nails or a good lice comb.
Ivermectin (Sklice). This lotion kills most head lice, even newly hatched ones, with just one use. You don't need to comb out lice eggs (nits). Children aged 6 months and older can use this product.
Dandruff. Dandruff can sometimes be mistaken for lice, but the symptoms are different. While lice is a parasitic infection, dandruff is a skin condition.
As with furniture and carpets, adult lice typically live for around 2 days on pillows and sheets without human contact. Nits will not hatch and will die within a week. People should machine wash any pillows or sheets someone with lice has used in hot water of more than 130°F (54.4°C) .
Once lice is in the home, it doesn't discriminate based on age. So, lice can infest parents as easily as siblings of the child with lice. However, moms typically get lice more often than dads. This is because lice does discriminate based on hair length and hormone levels of the host.
Generally, if no live crawling insects are seen three weeks after the treatment, it's safe to assume that they are gone. Nits would have hatched by that time if they were alive. Nits and their shells may remain in the hair for some time but won't be viable.
Lice eggs can't hatch off of your head, and they can't reattach.
If you think you have lice and see a small, oval blob on a strand of hair, it's probably a nit. If nits are yellow, tan, or brown, it means the lice haven't hatched yet. If the nits are white or clear, the lice have hatched and just the egg remains.
Research suggests that bed linen, hats, clothing and furniture do not harbour or transmit lice or nits and that there is no benefit in washing them as a treatment option. Nits and lice only live on the human head. They quickly dehydrate and die if removed from the head.
Head lice crawl, but they can't jump or fly. Head lice often spread from one person to another by direct head-to-head contact, often within a family or among children who have close contact at school or play. It's less common for head lice to spread without direct contact.
It may be possible to have nits but no lice. If a person cannot find any nymphs or adult lice in the scalp and the nits are more than a quarter of an inch from the scalp, these may be dead and from an old infestation. However, the lice could be in hiding.
This is a tactile hallucination known as formication. People with this condition are convinced the bugs are real, even with reassurance from others they are a hallucination. This makes formication difficult to treat for the person and their medical provider.
Nits are oval and usually yellow to white. Pubic lice nits take about 6-10 days to hatch and become nymphs, which look like a smaller version of the adult louse. The nymphs undergo 3 molts before becoming adults.
Combing wet hair with a fine-toothed nit comb may remove lice and some nits. Studies show that wet-combing results vary. Start by wetting the hair and lubricating it with hair conditioner or olive oil. Comb the entire head from the scalp to the end of the hair at least twice during a session.
Dead nits are often black in colour and are found away from the scalp. Nits are laid on the hair shaft (an area within 1cm of the scalp where the hair comes out from) and take about 7-10 days to hatch into head lice. They will only hatch in a moist, warm environment such as the scalp.
Head lice eggs are oval, and the size of a pinhead. They are firmly attached to the hair shaft and cannot be brushed off. (A live egg will make a 'pop' sound if you crush it between your fingernails.) The easiest and most effective way to find head lice is to use the conditioner and comb treatment weekly.