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What Do Pubic Lice Look Like?

October 5, 2026 7 min read

Last updated: October 5, 2026

Quick Answer

Pubic lice look like tiny, grayish-tan to brown insects with a short, broad, crab-shaped body, usually about 1.1 to 1.8 mm long, roughly the size of a pinhead. [1][2][6] They have six legs, with the front pair shaped like small pincers and the back pairs ending in thick claws that clamp onto hair. [1][4][5][7] They are visible to the naked eye but small enough that most people only confirm what they’re seeing with a magnifying glass or at a sexual health clinic.

Key Takeaways

Adult pubic lice are about 1.1 to 1.8 mm long, visible but easy to miss. [1][2][6]
The body is short, flat, and crab-like, wider than it is long. [2][4][6]
Color is usually tan, grayish-white, or grey-brown, and darker after feeding on blood. [1][3][5][7]
The front legs form small claws built to grip thick body hair. [1][4][5][7]
Eggs, called nits, are under 1 mm, oval, and glued tightly to the hair shaft. [1][4][5][6]
Pubic lice mainly live in pubic and perianal hair but can spread to other coarse hair. [3][8][9]
Bites sometimes leave small bluish-gray marks that are easier to spot than the lice themselves. [1][6]
Symptoms overlap with other skin and genital conditions, so only an exam or test confirms it.

What Do Pubic Lice Look Like Up Close?

Up close, a pubic louse looks almost nothing like a head louse. The body is short, broad, and flattened, clearly wider than it is long, which is where the nickname “crab” comes from. [2][4][6]

An adult measures roughly 1.1 to 1.8 mm, and the color sits somewhere between tan, grayish-white, and grey-brown. [1][3][5][7] After it has fed on blood, it tends to look darker, which is part of why two people can describe the same insect differently. [1]

Six legs attach to that broad body. The front pair is shaped like small pincers, while the second and third pairs carry thick, curved claws built specifically to grip a thick hair shaft and hold on. [1][4][5][7] You can see pubic lice with the naked eye, but at this size, against skin or hair, they often read as a pale or gray speck rather than an obvious insect. If you notice tiny specks near the base of pubic hair that don’t brush away, that’s worth checking under better light or at a clinic, not guessing about at home.

How Can You Tell If You Have Pubic Lice?

The most reliable sign is seeing a small moving insect or an egg glued to a hair shaft near the skin, not just itching on its own. [1][2][3]

Itching in the pubic or genital area, especially at night, is the most commonly reported symptom, but itching by itself does not tell you what’s causing it. [1][3][6] Some people also notice small bluish-gray or reddish marks where bites have occurred, usually on the lower abdomen, thighs, or buttocks. [1][6]

The best way to check is in good light: part the pubic hair close to the skin and look for tiny moving specks or small oval masses stuck to individual hairs. [1][6][9] A magnifying glass makes this easier, since both the lice and their eggs sit right at the edge of what’s comfortably visible. [6][9]

A common mistake is assuming any itch means lice, or assuming no visible insect means it isn’t lice. Nymphs (immature lice) are smaller and harder to spot than adults, so a clinic exam is more reliable than a quick self-check. [1][4]

What Do Pubic Lice Eggs Look Like?

Pubic lice eggs, called nits, look like tiny oval specks under 1 mm long, usually white, pale yellow, or pearly, and sometimes darker as they develop. [1][4][5][6]

They are not loose like dandruff. Nits are cemented firmly to the hair shaft close to the skin, and they don’t flake off when you run your fingers through the hair. [1][5] Sometimes several nits cluster together on the same hair or on neighboring hairs, which can look like a tiny row of small beads.

If what you’re seeing moves easily off the hair with a light brush, it’s more likely dead skin or product residue than a nit. If it stays stuck no matter how you touch it, that’s a detail worth describing exactly to the clinic examining you.

How Are Pubic Lice Different From Body Lice and Head Lice?

Pubic lice are shorter, broader, and more crab-shaped than either head lice or body lice, which both have longer, narrower bodies. [2][4][6] The three are different species, and they generally prefer different parts of the body.

Feature	Pubic lice	Head lice	Body lice
Body shape	Short, broad, crab-like	Elongated, narrow	Elongated, narrow
Typical size	~1.1-1.8 mm	Similar length, thinner	Similar length, thinner
Preferred location	Pubic, perianal, sometimes beard, lashes	Scalp hair	Clothing seams, body
Legs	Thick claws on back legs	Thinner claws	Thinner claws

Because the symptoms (itching, visible insects, small marks) overlap across all three, only a close look at body shape and location, or a clinic exam, reliably tells them apart. [2][4][6]

How Do You Get Pubic Lice, and Can They Spread to Other Areas?

Pubic lice spread mainly through close skin-to-skin contact, most often sexual contact, since they move slowly and don’t jump or fly. [2][3][8] Sharing bedding, towels, or clothing is possible but considered much less common, and guidance on how much this matters varies by country and by clinic. [3][8][9]

Pubic lice typically live in pubic and perianal hair, but Pthirus pubis prefers thick, coarse hair, so it can also turn up on the chest, armpits, beard, eyebrows, or eyelashes. [3][8][9] They generally do not spread to the scalp, where head lice are the usual species involved. [3][9]

If you’ve recently had an exposure and you’re also wondering about other infections, it helps to understand that different infections have different signs. For comparison, this breakdown of what chlamydia discharge looks like covers a completely different kind of symptom that sometimes gets confused with unrelated genital irritation.

How Long Do Pubic Lice Live, and How Do You Tell Them Apart From Other Skin Conditions?

Pubic lice need a human host and regular blood meals to survive, and they pass through immature nymph stages before becoming adults. [1][4] Away from the body, on bedding or clothing, they do not survive nearly as long, which is part of why person-to-person contact is the main way they spread. [2][3]

Other conditions can look similar from a distance: folliculitis, scabies, dandruff, or simple irritation can all cause itching or small bumps in the pubic area. [1][6] Symptoms overlap, and only a direct look, sometimes with magnification, or a clinic exam can tell them apart with confidence. If you’ve been examining the area yourself for days and still aren’t sure, that uncertainty is normal, and it’s exactly what a clinic visit is for.

What Are the Treatment Options, and What Do They Cost?

Clinics generally treat pubic lice with a lotion or shampoo formulated specifically to kill lice and their eggs, applied according to the product’s instructions. [1][2][10] Your clinic will tell you what applies to the specific product they recommend, including how long to leave it on and whether a second application is needed, since this varies by product, by clinic, and by country.

Cost also varies widely depending on where you’re treated, whether it’s a sexual health clinic, a pharmacy, or a general practice, and whether the visit itself is billed separately from the medication. There isn’t a single universal price, so ask the clinic that’s seeing you what the visit and treatment will cost before you book.

Partner notification is usually recommended, since recent close contacts may also need checking or treatment, even if they have no symptoms yet. [2][3][10]

Conclusion: What To Do Next

A description, a photo search, or a forum thread cannot confirm what’s happening on your own skin. If you’ve seen something that looks like what’s described here, or you’re itching without a clear reason, the next real step is to get tested or examined in person. [1][2][3]

A sexual health clinic can look at the area directly, often with magnification, and tell you with far more certainty than any article can. If a swab, urine sample, or exam was already done and you’re waiting on results, ask the clinic that ran the test what their timeline looks like rather than guessing. For broader context on what happens after a result comes back, this thread on what happens after a reactive home test walks through the next steps people actually took.

People who have been through pubic lice, treatment, and the waiting afterward are talking in the forum, including a discussion on how likely recurrence is after treatment. You can share your experience there, ask anonymously, or just read what others went through before you book your own appointment.

FAQ

Can you have pubic lice without seeing any bugs? Yes. Nymphs are smaller and harder to see than adult lice, and some infestations are mild enough that nits are easier to spot than the insects themselves. [1][4] Itching alone, without a visible lice or nit, isn’t enough on its own to confirm anything, so an exam is still the clearest next step.

Do pubic lice look different on darker or lighter skin? The lice themselves stay the same tan to grayish-brown color regardless of skin tone, but bite marks and small bluish-gray spots can be harder or easier to notice depending on skin color and lighting. [1][6] A clinic exam with proper lighting accounts for this better than checking at home.

Can pubic lice be mistaken for something else entirely? Yes. Dandruff, scabs, hair product residue, and ordinary skin irritation can all resemble lice or nits at a glance. [1][6] Only a close inspection, and sometimes a clinic exam, reliably tells them apart from unrelated skin condit