Lice InstituteNYC Region

How to Identify Head Lice

Learn the signs and symptoms of head lice infestation and how to properly check for lice and nits.

Schedule Professional Check

Step-by-Step Identification Guide

Visual Inspection

Part hair into small sections and examine the scalp, especially behind ears and near the neckline.

Use bright, natural light
Look for tiny, oval-shaped eggs (nits)
Check the entire scalp systematically
Pay special attention to warm areas
Visual Inspection

Nit Detection

Look for small, pearl-gray eggs firmly attached to hair shafts about 1/4 inch from the scalp.

Nits are tear-drop shaped
They don't brush off easily
Often appear yellowish or white
Found close to the scalp
Nit Detection

Adult Lice Spotting

Adult lice are tan to grayish-white, about the size of a sesame seed, and move quickly when disturbed.

Look for movement in the hair
Check for grayish-white insects
Size: 2-3mm long
Avoid confusing with dandruff
Adult Lice Spotting

Signs & Symptoms to Watch For

Itching and scratching, particularly behind ears and at neckline

Common

Small red bumps on scalp, neck, and shoulders

Common

Visible nits (eggs) attached to hair shafts

Definitive

Visible adult lice moving in the hair

Definitive

Difficulty sleeping due to increased activity at night

Common

Sensation of something moving in the hair

Common

Recommended Tools for Checking

Magnifying Glass

For detailed inspection of suspected nits and lice

Fine-Toothed Comb

To separate hair and detect lice/nits

Bright Light

For better visibility during inspection

White Paper Towel

To catch and identify anything that falls during combing

Pro Tips

Check all family members if one person has lice

Wet hair can make adult lice easier to spot

Regular checks can help catch infestations early

When in doubt, consult a professional

Need a Professional Check?

Our certified technicians can perform a thorough head check and provide immediate treatment if needed.