when do you know if you have head lice?
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Itching on the areas where head lice are present is the most common symptom. However, it may take up to 4 to 6 weeks after lice get on the scalp before the scalp becomes sensitive to the lice saliva and begins to itch. Most of the itching happens behind the ears or at the back of the neck.
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How to Spot Head Lice. Although lice and their nits are small, they are visible to the naked eye. Head lice can be white, brown, or dark gray. They are most often found in the hair at the back of the neck or behind the ears.
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Disease. Head lice are not known to transmit any disease and therefore are not considered a health hazard. Head lice infestations can be asymptomatic, particularly with a first infestation or when an infestation is light.
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Louse eggs are called nits. Nits look sort of like dandruff, except they don't brush or fall off as easily as dandruff. Lice attach their nits to pieces of hair, close to the scalp. If you think you have lice and see a small, oval blob on a strand of hair, it's probably a nit.
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Lice eggs (nits). Unless a child has many head lice, it's more common to see nits in the hair than live lice crawling on the scalp. Lice eggs hatch 1–2 weeks after they're laid. After hatching, the remaining shell looks white or clear and stays attached to the hair shaft.
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Poor personal hygiene does not cause head lice. The insects are attracted to human blood and do not care if a child or adult has clean or dirty hair.
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Lice eggs (nits) on hair shafts. Nits may be difficult to see because they're very tiny. They're easiest to spot around the ears and the nape of the neck. Nits can be mistaken for dandruff, but unlike dandruff, they can't be easily brushed out of hair.
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A visual inspection of your hair and scalp is usually effective in detecting head lice, though the creatures are so small that they can be difficult to spot with the naked eye.
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Lice eggs (nits) on hair shafts. They're easiest to spot around the ears and the nape of the neck. Nits can be mistaken for dandruff, but unlike dandruff, they can't be easily brushed out of hair.
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Some people may not have symptoms, particularly with the first infestation or when the infestation is light. It may take 4-6 weeks for itching to appear the first time a person has head lice.
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Side Effects. Scalp irritation, including itching, swelling, or redness may occur with head lice and temporarily worsen after treatment with permethrin. Mild burning, stinging, tingling, or numbness may also occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
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If you have lice, you might actually be able to feel the bugs crawling on your scalp. According to Healthline, lice can cause the sensation of something moving on or tickling your head. If you're concerned your child has lice, ask them if they notice this sensation.
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Head lice nits usually take about 8–9 days to hatch. Eggs that are likely to hatch are usually located no more than ¼ inch from the base of the hair shaft.
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The thought of lice might give you the creepy crawlies -- and with good reason. When these tiny mites infect the scalp and skin, they trigger intense itching and may even create a rash around the hairline.
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Types of lice You can find head lice on the scalp, neck, and ears. Body lice start out on clothing or in beds, but they move from those locations to people's skin.
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Body lice are similar to head lice, but have different habits. While head lice live in your hair and feed on your scalp, body lice typically live in your clothes and bedding.
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Head lice can cause an itchy scalp, but so can other skin conditions, such as dandruff, eczema, or even allergies to shampoo and other hair products.