What are head lice?
A head louse is a destructive insect with a tiny head, a round belly, short hairs, in light grey, and about 1~2 mm in length. Head lice lay eggs at the bases of hair shafts. Eggs of head lice are easily to be mistaken for dandruff because they are so tiny that can not be clearly identified with naked eyes. Stuck firmly to hair shafts with six powerful feet, head lice suck blood from scalps with mouthparts and cause annoying intense itching.

How are head lice spread?
By close contact with other people
Through hair combs and hats

What harms will head lice do?
Head lice suck blood from scalps and cause intense itching. Scratch may lead to wounds and bacterial infection. On top of all these, malaise and being unable to sleep are also common and affect a person's daily life.