Lice, one of the plagues still with us since the days of the story of Exodus. Contrary to popular belief, lice do not fly, jump or swim. They simply crawl from place to place.
These tiny parasites feed on the blood of their human hosts and cannot survive without them. This is why lice transmission occurs through direct head-to-head contact when one head is infested. Are lice found only on dirty heads? Not necessarily.
Lice infestation is not related to cleanliness but to specific treatment of the parasite and transmission from one person to another. 2 View gallery ( Photo: Shutterstock ) What happens to the scalp if left untreated? Lice will not disappear on their own. As long as there is a supply of blood, lice will continue to feed and reproduce by laying new eggs.
Beyond the discomfort and potential dysfunction they cause, scratching can injure the scalp, leading to sticky secretions and secondary bacterial infections. Thus, lice combined with bacterial infections can result in wounds, pain, rashes, an unhealthy appearance of the hair (knots, clumps, etc.) and an especially foul odor.
In rare cases, lice can burrow under the skin and cause severe inflammation. Why do lice keep returning even after treatment? A single louse has a lifecycle and a fixed number of egg-laying cycles. The problem is that lice lay eggs, from which new lice hatch, creating a feedback loop that is very difficult to break, forming an endless cycle.
Are girls more susceptible to lice? Direct contact .