The main reason that head lice form on the head is that the louse feeds on blood. This means that in order for them to reproduce, the louse must feed on human blood. These bugs will live on the head for up to 30 days before they fall off. They can spread through the use of personal items such as combs and brushes, but the best way to prevent the spread of head lice is to keep personal items clean and dry. Also, do not share combs or brushes with anyone you know. Likewise, never share personal items with someone who has head lice. Also, do not share towels, hats, or other clothing items with other people. You should also clean your car and bus seats, as well as individual infant car seats, according to the manufacturer’s instructions. Using insecticides to kill head lice is not recommended, but a thorough vacuuming
Another common method of transmitting head lice is through head-to-head contact. This is especially common during play, school activities, and sports. People can also transfer head lice through shared clothing, such as hats hanging on the same hook, or scarves being stored in the same locker. It is also important to remember that household pets cannot transmit head lice.
There are three main forms of head lice. The first one is the nit, which is the egg of the head louse. These are tiny, oval-shaped, and difficult to detect. The eggs hatch after about a week and develop into nymphs. These nymphs feed on the blood of their host. Lice eggs are also yellow to white in color, so they can be easily mistaken for dandruff.