Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

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Head lice头虱

Head lice are tiny grey-brown, wingless insects, which live by sucking blood from the scalp.头虱是微小的灰棕色，无翼昆虫，其中生活吸血从头皮。 Their eggs, known as nits, are laid glued to the base of hairs, and look like tiny white specks.他们的鸡蛋，被称为尼特，下岗粘到基站的头发，并期待一样，微小的白色斑点。 The eggs hatch after 7 to 10 days, and 10 to 14 days after hatching the nymph louse is mature and between 2 and 4 mm long (the size of a sesame seed).卵孵化后7到10天，及10至14天，孵化后若虫虱子是成熟之间的2和4毫米长（大小相当于一芝麻） 。 Once mature they reproduce so numbers can grow alarmingly if not treated.一旦成熟，他们重现，使号码可以成长惊人，如果不接受治疗。

The head louse (Pediculus capitis) affects only humans, and cannot be passed on to, or caught from animals.该头虱（头虱capitis ）只会影响人类，不能转嫁到，或捕获的动物。 Infestation with head lice is also known as pediculosis.感染头虱，也称为pediculosis 。 Head lice are common in schoolchildren, particularly between the ages of 4 and 11, but anyone with hair can catch them.头虱是共同在中小学生，特别是年龄介于4条和第11 ，但任何人都与头发可以赶上他们。