Does Having Lice Mean Poor Hygiene? (Understanding the Facts)

The Real Reason Lice Happen

Head lice infestations are caused by contact with someone who already has lice, not by not washing your hair. CDC

Why This Myth Persists

People often falsely assume that lice prefer dirty hair because:

  • Dirty hair makes nits more visible

  • Lice outbreaks seem more common in certain settings with close contact

But studies and public health data confirm:

  • Lice infestations occur equally in clean or dirty hair

  • Lice simply want a warm place close to a blood source

  • Good hygiene does not prevent lice infestations CDC

For more Frequently Asked Questions click here

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Can Adults Get Head Lice? (Yes — and Here’s Why)

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How long do head lice live off the head?