In the United States,
Head lice most often affect children. The insects usually spread through direct transfer from the hair of one person to the hair of another. Having head lice isn't a sign of poor personal hygiene or an unclean living environment. Head lice don't carry bacterial or viral diseases.
Head lice (Pediculus Capitis) are a common problem that most parents, students and teachers in Australia are familiar with. They are tiny parasites, about the size of a sesame seed, and live on the human scalp and hair. They feed on human blood up to 4 times a day.
Preschool and elementary-age children, 3-10, and their families are infested most often. Girls get head lice more often than boys, women more than men. In the United States, African-Americans rarely get head lice.
The most common symptom of head lice is itching, especially on the back of your head and neck and near your ears — areas where lice are more likely to live. Symptoms of head lice include: Feeling like something in your hair is moving (tickling).
In fact, adults can get lice anytime their hair is in close contact with the hair of someone who has lice. Whether public transportation, concerts, or crowded areas, any situation in which there is hair to hair contact puts adults at risk of getting lice.
Lice are attracted to the blood they get through your scalp – short, long, clean or dirty.
Adults are not immune to head lice. In fact, if you have any close contact with children or even parents of children you can be at risk of catching them if they have them. Lice transfer primarily through head to head contact, so you would have to get close to the other person.
No one is immune, but frequent head checks help
Anyone can get lice, and personal hygiene has nothing to do with the likelihood of being infested, Rukke said.
Although head lice can feed on different blood types, they cannot thrive on different Rh blood factors. Therefore, lice will only prefer to move to somebody else of the same rhesus factor irrespective of the blood type.
The peak season for lice infestation is August through October and again in January. Head lice are tiny parasitic insects that feed on human blood. Lice come in three forms: nits (eggs), nymphs (baby lice), and adults. Nits are white or yellowish-brown and about the size of a poppy seed.
You may not experience itching until about 4 to 6 weeks after lice exposure. This is because the lice take time to multiply and cause symptoms of itchiness.
Clean all hair items by soaking in a lice treatment product for 10 minutes or cleaning with hot, soapy, or boiling water for 5 minutes. Never share towels, bedding, clothing, hats, and headgear. thoroughly. Insecticide sprays are not recommended because this will expose household members to unnecessary pesticides.
African American people can still get head lice. However, the Centers for Disease Control and Prevention (CDC) state that African American people get head lice much less frequently than other people. The reason for this may be that most head lice in the United States have claws that more easily grip onto uncoiled hair.
While head lice live in your hair and feed on your scalp, body lice usually live in your clothes and bedding. They travel to your skin several times a day to feed on blood. Your clothing seams are the most common places for body lice to lay their eggs (nits).
White people get head lice more often than other racial groups. And girls and women tend to get them more often than boys or men because their hair is longer, says Dr Mervyn Elgart, emeritus professor of dermatology at George Washington University. Having short hair is a blessing, Elgart says.
Getting Lice While Bald
They find it difficult to feed and quickly die off. Lice may attempt to attach, but the environment is unsuitable for their survival. While bald people may become temporarily affected by head lice they often leave for a better suited host or die off. Thin or sporadic hair can still attract lice.
Hairspray makes it harder for the louse to grab hold. The smell of hairspray and the use of solvents (sad but true) in them can also deter creepy crawlies from finding their way in. Not to mention that if you're tying longer hair back, you've got a double whammy.
Lice for Building Immunity
Recent studies have shown the benefits of having lice. While it may sound ridiculous and unbelievable, there's scientific evidence that a certain kind of louse can be beneficial in reducing the chances of developing immune deficiencies.
An adult head louse can live about 30 days on a person's head but will die within one or two days if it falls off a person. Adult female head lice are usually larger than males and can lay about six eggs each day.
The longer answer goes back over 800,000 years. Scientists believe head lice began to evolve on a different path than body lice about the time humans started to wear more clothing. Body lice evolved to attach to clothing fibers which are typically thicker and stronger than a human hair. Head lice stuck with the scalp.
Heavy and chronic lice infestation can be associated with severe iron deficiency anaemia. Lice infestation should be considered as a possible cause of iron deficiency anaemia in patients with poor hygiene, such as children, homeless patients and psychiatric patients.
Pubic lice are different than head lice, and you usually don't get crabs in the hair on your head. Head lice usually don't show up in the pubic area, either.
You can find head lice on the scalp, neck, and ears.