How to Take a Clear Photo for a Head Lice Check

Head lice are small, fast, and blend in with hair. Nits (eggs) are even smaller – about 0.8 mm long and 0.3 mm wide, roughly the size of a knot in thread. They are oval, usually yellow to white, and are glued firmly to the hair shaft close to the scalp within about 4 to 6 mm of the skin. Dandruff, hair product residue, and dirt can look very similar, but they flake off easily. A nit will stay stuck when you try to pull it.

A clear photo allows someone who regularly identifies lice to confirm what you’re seeing. It also provides a record you can refer to later, for example, to monitor whether a treatment has worked or to compare with new findings. Professional lice screening services often accept photos sent via email or messaging, so a good image can even let you get an expert opinion without leaving home.

You probably already have everything you need. Gather these items before you start:

Smartphone or digital camera with a macro or close-up mode. Most modern phones can take decent close-ups if you get the distance right. Good lighting – daylight from a window is ideal. A desk lamp, ring light, or phone flashlight can supplement if needed. Fine-toothed detection comb – available from pharmacies and online. This is the most reliable tool for checking for lice and nits. White paper towel or tissue – to place anything you comb out so you can see it clearly against a light background. Hair conditioner or oil – mineral oil, coconut oil, or olive oil work well. Coating the hair makes combing easier and slows down any live lice. Magnifying glass (optional but helpful) – to examine what you find on the comb or paper towel. Gloves – optional, but can help if you are squeamish.

Set up in a well-lit room. Sit the person you are checking in a comfortable chair facing a mirror. If you are checking yourself, use a second mirror or ask someone to help.

Comb the hair thoroughly to remove tangles. If the hair is curly enough to form ringlets, gently straightening it with a flat iron (on a low heat setting and with heat protectant) can make sections easier to part. Apply enough conditioner or oil to coat the hair from root to tip. This helps the detection comb glide through and makes it harder for lice to cling on. Leave it on for a few minutes. Prepare a clean white paper towel on a flat surface next to you. You will wipe the comb onto it after each stroke.

You are most likely to find lice or nits in specific areas: the crown of the head, the hairline behind the ears, and the nape of the neck. Start your check there.

1. Section the hair Use your fingers or the tail of a comb to create a clean part that exposes the scalp. Work in narrow sections (about 1–2 cm wide) so you can see the base of the hair clearly.

2. Comb each section Starting at the scalp, slowly pull the detection comb through the section. After each stroke, look at the comb’s teeth. If you see anything stuck there, gently wipe it onto the white paper towel.

3. Examine what you find Look at the material on the paper towel. Live lice are dark in colour (brownish to grey) and the size of a poppy seed. They move quickly. Nits are white or yellowish-brown and stay attached to hair fragments. Use a magnifying glass if you have one.

If you see something suspicious, that is what you need to photograph.

4. Set up the shot Place the paper towel with the suspected louse or nit on a flat, well-lit surface. Position it so that the light hits the object directly, not from behind. A window on a cloudy day or a desk lamp angled at 45 degrees works well.

Settings for your camera:

Use the macro or close-up mode if your phone has one. On many phones, this activates automatically when you move the camera close to the subject. Hold the phone steady, or use a small tripod or prop the phone on a book. Shaky hands cause blur. Tap the screen to focus on the object. Wait for the focus to lock. Adjust exposure by swiping up or down on the screen if the image looks too bright or too dark. Take several shots from slightly different angles. A sharp image of the shape and attachment site is key.

5. Include a size reference Place a coin (a 1p or 2p piece works well) or a ruler next to the object. This gives the person viewing the photo a sense of scale. Nits are smaller than a grain of salt, and a live louse is about the size of a sesame seed – a reference helps confirm what you are seeing.

6. Photograph the hair on the scalp too A photo of a suspect nit still attached to the hair on the scalp is even more useful. With good lighting, get as close as you can while keeping the hair and scalp in focus. Show the nit’s position relative to the scalp – nits within 6 mm or less are likely to be viable. Also capture the area around it: comb the hair aside so the examiner can see the hair shaft clearly.

7. Save and send Save the photo at the highest resolution your phone offers. If you plan to send it by email or messaging, check that the file is not compressed so much that details are lost. You can note the time and date in the photo details to help track when you found it.

When you send a photo to a lice screening service or pharmacist, they will look for these features:

Live louse: six legs, elongated body, dark colour, and movement (though movement won’t show in a still photo, so take a short video if you can). A video clip of a moving louse is diagnostic on its own. Nit (egg): oval shape, attached to one side of the hair shaft at an angle. It will not slide along the hair; it is firmly glued. A nit that is still viable is usually brownish; a hatched or dead nit may be whiter and more transparent. Location: close to the scalp (within 4–6 mm) is the only place where eggs are laid and where they survive. Nits found further down the hair shaft are usually old and empty.

If the object is easily flicked off or crumbles, it is likely dandruff, dry skin, or hair product residue – not a nit.

Even with a good camera, a few errors can make the image useless:

Too far away. The subject is too small to examine. Fill the frame. Blurry focus. The camera focuses on the background or on the paper towel texture, not on the nit or louse. Tap the screen to focus. Poor lighting. Shadows hide details. Use bright, direct light. White on white. A white nit on a white paper towel can be invisible. Place a dark-coloured card (like a credit card) next to the object, or use a paper towel with a coloured border. No size reference. Without a coin or ruler, the person viewing can’t judge scale.

If the photo shows a live louse or a nit attached close to the scalp, you have confirmed head lice. In the UK, NHS guidance advises treating with a licensed insecticide product from a pharmacy or using wet combing with a detection comb. No treatment is 100% effective against eggs, so you will need to repeat the combing or treatment after 7 days.

If you are unsure or want a second opinion, you can send the photo to a professional lice screening service or show it to a pharmacist. Avoid starting treatments based on an unclear image. Using insecticide unnecessarily can expose your family to chemicals and may contribute to resistance in the local louse population.

Taking a clear photo of a suspected head louse or nit is a simple, practical first step. It gives you a chance to have an expert review what you’ve found without an immediate trip to a clinic. If the photo confirms an infestation, you can then follow the appropriate treatment pathway – whether that’s wet combing, a pharmacy product, or a professional removal service.

If you need further advice on interpreting what you see in your photo, get in touch with a local lice screening service or your local pharmacy. They can help you decide on the next steps for your family.

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This article is based on public health guidance from the NHS, CDC, and professional lice screening organisations. It is for informational purposes and does not replace individual medical advice.

Use this answer as one piece of evidence, not the whole decision. If you want a quick second check, start with the AI head lice checker, then compare your result with the wider AI Detection hub so you can see where this question fits in the bigger picture.

If what you are seeing still overlaps with common lookalikes, compare it with can ai detect head lice what it can and cannot tell you and can ai detect nits as well as live lice before moving to treatment on guesswork alone.

When the evidence remains mixed after a better photo or repeat check, move from uncertainty to confirmation. The most practical escalation routes are How to Choose a Head Lice Clinic Near You and the Head Lice Clinic Locations hub.

If active lice becomes likely, use the shop treatment reviews and the review of the NitNOT Fine Tooth Comb as decision support rather than treating every doubtful sign automatically.