Lice InstituteNYC Region

Signs & Symptoms of Head Lice

Learn to recognize the early warning signs of head lice infestation and when to seek professional treatment.

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Common Signs & Symptoms

Itching and Scratching

Persistent itching, particularly behind ears and at the neckline

Common
Usually starts 2-4 weeks after infestation

Visible Nits

Small, oval-shaped eggs attached to hair shafts near the scalp

Definitive
Visible immediately upon careful inspection

Live Lice

Adult lice moving on the scalp, typically grayish-white in color

Definitive
May be difficult to spot initially

Red Bumps

Small red bumps or sores on the scalp, neck, and shoulders

Common
Develops after prolonged infestation

Difficulty Sleeping

Increased itching and discomfort at night

Common
Often reported after several days

Tickling Sensation

Feeling of something moving in the hair

Common
Can occur throughout infestation

Where to Check for Lice

Behind the Ears

Behind the Ears

One of the most common areas for lice and nits

Neckline

Neckline

Check both the hairline and nape of neck

Crown of Head

Crown of Head

Examine the top and sides of the scalp

Common Misconceptions

Only dirty hair gets lice

Lice prefer clean hair and affect people of all hygiene levels

Itching always means lice

Many conditions can cause scalp itching - proper inspection is needed

You can feel lice moving immediately

Early infestations often go unnoticed for weeks

Dandruff is a sign of lice

Dandruff and nits look different and require different treatments

When to Seek Professional Help

Persistent Symptoms

If symptoms continue despite over-the-counter treatments or home remedies.

Confirmed Infestation

When you've identified live lice or nits in the hair.

Multiple Cases

If multiple family members or close contacts are affected.

Professional lice inspection

Concerned About Head Lice?

Don't wait until symptoms worsen. Our professionals can provide a thorough inspection and immediate treatment if needed.