Text Box: What is Head Lice? Head lice are small wingless insects about the size of a sesame seed. They feed on blood and live within the hairy scalp of the body. A head louse (only one insect) can lay up to ten eggs. The eggs are called nits. The nits can be seen along the hair shaft, normally within 1/2 inch from the scalp. They may appear light brown or gray but can vary in color. The most common areas are around the ears and along the nape of the neck. Where do lice come from? Head lice are insects that date back many centuries. They do not carry disease but are simply a nuisance. 3. How do I catch lice? Lice can spread during direct contact with a person who has lice. Sharing brushes, combs or hats can also spread lice. It is estimated that 95% of cases are spread through person to person contact while only 5% comes from indirect contact. 4. Can lice jump? Lice Do Not have the ability to jump or fly. They are active, fast crawling insects. Lice have three strong legs with powerful claws on each side to cling to the hair shaft. What are the symptoms of head lice? The first sign is itching at the back of the head and around the ears. Lice feed on human blood and the itching is caused by saliva being injected into the scalp. Not everyone will experience itching. About 50% of children with lice don't itch. If you notice your child repeatedly scratching his or her head, you should examine the head at once. 5. What are the symptoms of head lice? The first sign is itching at the back of the head and around the ears. Lice feed on human blood and the itching is caused by saliva being injected into the scalp. Not everyone will experience itching. About 50% of children with lice don't itch. If you notice your child repeatedly scratching his or her head, you should examine the head at once. 6. How long does it take for a person to develop symptoms? It can take up to 2-3 weeks for symptoms to appear. Some people may never develop symptoms. 7. Should I treat everyone in the family when my child has lice? If you are using a lice shampoo, treat only those persons with confirmed head lice or nits. It is not generally recommended to do preventative treatment just because they may have come in contact with an infected person.