A hair-raising video that is making a viral rerun on the internet shows hundreds of head lice crawling around a girl's head. Karla Mendoza, the owner of the head lice treatment salon in Mexico, described the infection as unprecedented. Clad in gloves, Karla proceeds to part different sections of the girl's hair, only to reveal more of the blood-sucking parasite squirming around on the scalp. Online health portal MedicineNet said that head lice inhabit the human scalp and feed exclusively on human blood. These wingless insects are usually transmitted by personal contact such as the sharing of combs, brushes, caps and clothing.
Everything you ever wanted to know about head lice (but were too busy scratching to ask)
WHO | Human lice – their prevalence, control and resistance to insecticides. A review −
Lice and dandruff are two common conditions that affect the scalp. While they share some similarities, lice and dandruff have different causes so they require different treatments. Head lice are contagious parasites that exist in three forms:. Dandruff, also called seborrheic dermatitis, is a self-contained scalp condition that causes flaky skin or scales on your scalp. Read on to learn the differences between lice and dandruff. Knowing the differences can help you treat your scalp condition properly. Head lice and dandruff can cause noticeable symptoms in some people, but not in others.
Worldwide Prevalence of Head Lice
According to Public Health England PHE , the only reliable way to diagnose an active infestation is to find a living, moving louse. This is because the eggs of lice nits can be mistaken for dandruff or hair muffs — oily secretions that can wrap around hair — and even if you do find a nit, it is difficult to tell whether it is dead or alive. Not everyone with head lice will experience an itchy scalp, and itchiness could be psychological, or the result of something else, such as eczema.
Chin Whybrew January 19, Head lice infestations are very common in school-age children and can be difficult to eradicate. This article discusses how to detect head lice, and considers the treatments options available and their efficacy, including physical removal of lice wet combing , physical insecticides and chemical insecticides. Head lice are wingless insects that feed on blood from the human scalp. The adult louse is approximately 3mm long the size of a sesame seed , and is pale brown to grey-white in colour.