Sometimes you find them in eyebrows, eyelashes, and beard. Head lice are most commonly found in young, school age children. But anyone can get head lice - it does not matter whether a person is young or old, dirty or clean, rich or poor. Adult head lice are hard to see. But their eggs, called nits, are easier to find.
Nits are off-white in color and about the size and shape of the head of a straight pin.
The nits may at first look to you like dandruff, but you will find that the nits are very firmly stuck to the strands of hair. Nits will not flake off or wash off like dandruff. Head lice live for about 1 month. They multiply very quickly. Adult female lice lay up to 6 nits a day.