Health & Medical

The Head Lice Life Cycle: All You Need to Know

The Head Lice Life Cycle
Written by Nancy

When you think of head lice, you’re likely to call to mind an image of a small insect, about the size of a sesame seed and either tan or gray in color. This is indeed an accurate image of an adult louse, but it’s important to know that the head lice life cycle is composed of three stages—the egg, the nymph, and the adult.


The lice egg is also known as a nit, and these are the ones that are notoriously difficult to get rid of by way of common lice treatment methods. They are quite difficult to see, as they are significantly miniscule, and are attached with a glue-like substance at the base of the hair shaft. They can take around a week to hatch, and are off-white or yellow in color.


The nit hatches into a nymph, which looks almost exactly like an adult louse. However, it is much smaller in size as compared to one—pretty much how big a pinhead is. These nymphs transform into adult lice around 7 days after they hatch from the egg.

adult louseAdult

Finally, the nymph matures into an adult louse. These parasites can live up to a total of 30 days on a person’s scalp, but it’s essential for them to feed on blood multiple times on a daily basis to be able to survive.

They are the size of a sesame seed, and can be light or dark brown, or even grayish white. They have six legs with claw-like structures that allow them to latch on and move around. Female adult lice tend to be on the larger side, and can lay up to 8 nits a day.

If you or a loved one find yourselves victim to a pesky head lice infestation, then rest assured—there’s no need to fret about head lice treatment possibilities. All we recommend is that you stay away from the over-the-counter lice shampoos and lotions, as well as avoid getting creative with DIY home remedies.

The answer to your problem lies in professional lice removal services that can help you get your scalp lice-free in no time at all!

About the author



I’m Nancy and no, I didn’t always look like I do in that picture on the right. My foray into health and fitness began as a brace-faced, 16 year-old who was too afraid to wear a two-piece at the beach because I felt my body paled in comparison to my much more toned friends.

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