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Females get head lice twice as often as males, [46] and infestation in persons of Afro-Caribbean or other black descent could be rare due to difference in hair shape or width. [ 46 ] [ 49 ] But these children may have nits that hatch and the live lice could be transferred by head contact to other children.
Females lay about three or four eggs per day. Louse eggs (also known as nits), are attached near the base of a host hair shaft. [11] [12] Eggs are usually laid on the base of the hair, 3–5 mm off the scalp surface. [11] [12] In warm climates, and especially the tropics, eggs may be laid 6 inches (15 cm) or more down the hair shaft. [13]
A dead nit attached to a hair. No nit policy is a public health policy implemented by some education authorities to prevent the transmission of head lice infestation.The "no nit" policy requires the sending home and barring of all children who have nits (egg shells) on their hair from controlled settings such as school, summer camp or day care facilities.
’It was grossly inappropriate to have a whole team of my peers and management glaring at me, asking constant questions and picking apart my hairstyle as if I was a special attraction at a zoo ...
For a treatment with louse comb alone, it is recommended to comb the hair for an hour to an hour and a half (depending the length and type of the hair) daily or every second day for 14 days. Wetting the hair especially with water and shampoo or conditioner will facilitate the combing and the removal of lice, eggs and nits. [21] [22] [23] [24]
Pediculosis pubis (also known as "crabs" and "pubic lice") is an infestation by the pubic louse, Pthirus pubis, a wingless insect which feeds on blood and lays its eggs (nits) on mainly pubic hair. Less commonly, hair near the anus, armpit, beard, eyebrows, moustache, and eyelashes may be involved.
Head-lice infestation is most frequent on children aged 3–10 and their families. The CDC estimates that 6 to 12 million children aged 3 to 11 get lice every year. [6] Females aged 3–12 years are most commonly infested. [7] Those of African descent rarely experience infestation due to differences in hair texture. [7]
The terminology originates from the common act of manually removing nits (the eggs of lice, generally head lice) from another person's hair. [4] As nitpicking inherently requires fastidious attention to detail, the term has become appropriated to describe the practice of meticulously searching for minor, even trivial errors in detail. [5]