Updated On

November 9, 2023

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    Head lice are a common problem in the United States with between 6,000,000-12,000,000 cases per year.

    Sometimes people can easily tell that they have a problem because all of their hair seems to move, but most individuals have a harder time determining if lice are there because lice tends to resemble other stuff (like dandruff).

    If you think you have lice, the information below can help you determine if you have an infestation and what you can do to treat it and prevent a future problem.

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    What Lice Look Like at Each Stage of their life cycle

    For those who don’t already know, lice is the plural form of louse (some people think they’re entirely different things).

    Take a look at the below video to get a sense of how they move and what to look out for.

    A louse is a tiny, bloodsucking parasite that lives on the scalps of humans and feeds on people. Each louse is roughly the size of a single sesame seed and ranges in color from white to tan to gray.

    When trying to figure out what your lice looks like, remember that there are 3 stages a louse will undergo and they all look different: Nits, Nymphs, and Adult.

    Nits: Nit is another term for a louse egg. Nits are roughly the size of a knot in a strand of hair and are difficult to see. They latch onto hair follicles and can be difficult to remove without proper treatment.

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    Nymphs: Nymphs are the next stage of than adults and look like smaller versions of a full-grown louse. They range from 1-2 mm in length, which is smaller than the size of the tip of your pencil.

    Adult Lice: Lice have six legs with feet like hooks that grip onto single strands of hair. Their “hook grip” allows them to move through your hair easily.

    How Long Do Lice Live?

    Thankfully, lice have short lifespans.

    An adult louse only lives roughly a month, or 30 days, while on a human head. If the lice fall out or are somehow removed, then they can only last 1-2 days away from the scalp. Nits take roughly 8-9 days to hatch and aren’t a problem until the lice emerge.

    Lice Reproduction

    Lice reproduce quickly and have a lot of young. Each female louse can have between 50-150 nits during their lifetime. This means that a single pair of lice can have 150 children, which can then reproduce as well. Nits are attached to hair using a special, sticky, glue-like substance and are roughly only 1/4 inch away from the scalp.

    How To Tell If You Have Lice

    It should be pretty easy to tell if you or a loved one have a lice infestation. Below are some of the most common signs that a lice problem exists.

    1. You can see movement from the lice on your head.
    2. You start to suffer from an itchy scalp, dandruff, or have dried blood under your hair.
    3. Using a magnifying glass, you can see the lice in your hair.
    4. You find nits on your pillow or brush.

    The only way to truly tell if someone has lice is to see the infestation. If you have trouble identifying lice, use a magnifying glass.

    You should be able to see small, six-legged bugs moving around close to the scalp. If you have an itchy scalp and flaking without seeing any pests, you might just have dry skin and should consider a dandruff shampoo.

    20 of The Best Pictures and Images of Lice

    1. For the first picture we have eggs cocoons attached to hair follicles as well as an adult louse full of blood!

    2. Here we have a woman combing hair with a lice comb under a magnifying glass.

    3. This is a picture of one small louse crawling on some white paper.

    4. This is another picture of a person combing lice eggs and nits out of hair. These combs are specially designed to separate the eggs from the hair follicles.

    5. Here you can see a louse full of blood.

    6. That’s not dandruff, that’s lice eggs! People with black or dark hair have  much better time of spotting these nasty pests.

    7. Here you can see yet ANOTHER louse with a body full after a blood meal.

    8. Below is a picture of four different lice crawling around in hair magnified to increase visibility.

    9. Below is a pack of lice up close. The ones up near the top appear to have just had a blood meal and look a bit darker.

    10. Here you can see someone using a comb to dislodge lice eggs from hair follicles. A comb with extremely fine teeth is really the only tool capable of this job.

    11. This is an image of one louse crawling on a hair follicle.

    12. Here you can see images of lice eggs in a man’s hair at the base of his scalp.

    13. Lice are very small and only with a microscope can you can get a really good picture of their body.

    14. Here’s another good photo of three lice crawling through hair. Two of them are a bit darker, which means they’ve probably had a recent blood meal.

    15. This is a really good picture of lice eggs attached to hair follicles. Normal lice shampoos are only good to kill adult lice and nymphs but still have no effect on eggs. You need a comb to remove eggs.

    16. Here you can see an image of two lice eggs at the base of this person’s scalp.

    17. Possibly one of our favorite images if this picture of lice eggs, nymphs, and adults at the end of a lice comb. Here you can also see how close the teeth of the comb are together.

    18. Another great image as it gives you a sense of scale. Here you can see adult lice, some nymphs, and a few eggs still attached to these hair follicles.

    19. One of our final images is another adult louse crawling through a bunch of bits of hair.

    Lice vs Flea Size Comparison

    20. Our final image is one of the best we could find that helps compare the size of lice and fleas. Both are very small and feed on blood, which makes it difficult to decipher which pest you might be suffering from.

    Lice are bit smaller and vastly prefer to live in their host’s hair.

    Closing Thoughts About Lice Pictures…

    As I’m sure you’ve seen by now is that lice are VERY small.

    Most of the images above are taken with special cameras capable of zooming in with great focus.

    Hopefully now you have a new found appreciation for these little guys and can tell them apart from other common pests (like fleas).

    Thankfully, lice are very treatable with over the counter shampoos and equipment. Here’s a link to our lice removal guide for reference.

    Editorial Contributors
    avatar for Ed Spicer

    Ed Spicer

    Ed has been working in the pest control industry for years helping 1,000's of homeowners navigate the world of insect and rodent management.

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