The spread of head lice is a cause for concern for many parents, as it mainly affects children in daycare, nursery and school. Often, the discomfort is caused by the erroneous prejudice that links pediculosis to poor personal hygiene, a factor currently denied by the scientific community.
In reality, these parasites can affect anyone and do not differentiate between short or long hair, clean or dirty, as they are transmitted by direct contact (they do not jump, do not fly and do not survive in the environment). Preventing lice infestation is impossible. , but fortunately there are many anti-pediculosis treatments (shampoos, lotions, powders) that are effective in eliminating these annoying parasites.
human through a rostrum and proliferate in hair or hair, on which they move easily thanks to the hooks placed on their legs. The eggs laid by the louse (nits) are white-greyish about 1 mm in diameter and are firmly anchored to the hair shaft: for this characteristic they can be differentiated from dandruff which, on the contrary, is eliminated with a blow or a slight removal manual.
After about a week, the eggs hatch near the scalp. To establish how long the infestation has been going on, it is possible to measure how far the eggs have moved away from the scalp. The nits located at a distance of 7-10 mm from the scalp, were laid 15-20 days earlier (in fact , hair grows about 1cm per month).
Adult lice live about 30 days. During this period, a female can lay 80 to 300 eggs on the host.
