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There may be some grey-blue discolouration at the feeding site, and eggs and lice may be visible. [1] [2] [3] Scratch marks, crusting and scarring may be seen, and there may be signs of secondary bacterial infection. [1] Diagnosis is by visualising the nits or live lice, either directly or with a magnifying glass. [5]
You might not even see the bites first—the initial giveaway might be tiny lice eggs (a.k.a. nits) first. ... and then burrow into it to lay eggs. This causes an itchy, red rash to form on your ...
The thoracic segments are fused, but otherwise distinct from the head and abdomen, the latter being composed of seven visible segments. [9] Head lice are grey in general, but their precise color varies according to the environment in which they were raised. [9] After feeding, consumed blood causes the louse body to take on a reddish color. [9]
Head lice are spread by direct contact with the hair of someone who is infected. [4] The cause of head lice infestations in children is not related to cleanliness. [5] Other animals, such as cats and dogs, do not play a role in transmission. [4] Head lice feed only on human blood and are only able to survive on human head hair.
Some people have more severe reactions that cause a hive-like rash in the area around the bites. Other symptoms: Mosquito bites don't typically cause symptoms beyond the annoying, itchy bumps.
Head lice are about 2 to 3 millimeters long, and they usually infest the head or neck and attach their eggs to the base of the hair shaft, according to the CDC.
Lice inhabiting birds, however, may simply leave their eggs in parts of the body inaccessible to preening, such as the interior of feather shafts. Living louse eggs tend to be pale whitish, whereas dead louse eggs are yellower. [5] Lice are exopterygotes, being born as miniature versions of the adult, known as nymphs. The young moult three ...
When your child is the temporary home for these blood-sucking freeloaders, the social issue can sometimes be more overwhelming than the physical issue.