What Causes Head Lice?

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By james
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Reviewed: Dr. Gromatzky
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8. Pets

It is often thought that pets can help to spread head lice, but this is not really the case. Head lice that live on people have evolved to feed on human blood specifically, so they cannot feed off our pets. If they do end up in our pet’s hair, then they will have 24-48 hours to live just as if they fell onto the carpet.

That said, pets can still carry lice from one person to another and they may carry lice from one place to another. When it comes to fleas, however, people can sometimes get bitten by dog fleas or cat fleas. However, only human fleas can live on humans in the long term.

Head Lice

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