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Facts about Head lice

This section contains actual photographs of head lice & their eggs (nits), plus factual information to correct some common myths & misconceptions surrounding head lice.

What do they look like?
Most pamphlets you pick up on head lice will have nice, friendly cartoon pictures of head lice, or no pictures at all. We've included some enlarged pictures of actual lice & nits, so you know what you're looking for:

adult head lice Head lice are usually white to grey in colour, with a dark stripe down the centre of their body. They are about the size of a sesame seed (approx. 2mm), with six legs & two "spiracles", or antennae, on their head. As they can run away, they are usually harder to find than nits.

Nits are the eggs of head lice. They are usually oval-shaped, little bigger than a pinhead (approx. 1mm) & cream to coffee in colour. "Fresh" or newly laid nits are found next to the scalp at the base of the hair shaft. nits

Reproduced with permission of National Pediculosis Association

 

Now that we know what we're looking for, let's get rid of some common "myths & misconceptions" surrounding head lice:

myth Having head lice is a sign of poor hygiene!
fact Head lice aren't that fussy. Clean, dirty, short, straight, curly - all they want is blood! In fact, if you think about it logically, it is probably easier for head lice to move around in clean hair - without bits of dirt/dandruff to climb over!
   
myth You can catch head lice from birds & other animals!
fact Human head lice are "host specific" - they feed off the blood beneath the human scalp alone.
   
myth Lice can jump & fly from head to head!
fact Lice have no wings (so they can't fly) & they can't jump, either. They spread by "scurrying" from head to head, or affected item to head (e.g. brushes, hair clips, hats etc).
   
myth Lice can survive a long time off the head, waiting for the next hapless "victim!"
fact A well fed louse should only last up to 2 days off a human host, depending on when it last had a meal. During this time, it generally will not lay any eggs ("nits").
   
myth Head lice live for months - that's why they're so hard to get rid of!
fact Head lice live for 4 - 5 weeks from nit (egg) to adult louse. Females lay 4 -5 nits per day in the last two weeks of their lives.

head lice timeline (days)

Always read the label. Use only as directed. If symptoms persist, see your healthcare professional.

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head lice