Head lice are parasites that live on human beings’ heads. You can kill them by treating the person’s head and any other object in the vicinity. Usually, the first step in treating lice is to keep the affected area clean and dry. It is also important to check for head lice in other household members.
Adult lice are approximately the size of a sesame seed and have six legs. They need to feed on blood to survive. Once they find a host, they will spend up to 30 days on that person’s head. However, if they fall off the head, they will die within a day or two.
The main way to spread head lice is by direct contact with the hair of an infested person. However, the spread can also occur through clothing and personal items. Unlike other types of parasites, pet owners cannot spread head lice. The risk of contracting head lice is highest among children in child care and elementary schools, as well as household members of infested children.
There is no single cause for head lice, although the chances of contracting head lice are higher in girls than in boys. The most common cause of head lice is head-to-head contact, which can occur during play, sports, and slumber parties. The risk is also higher in girls because they do more activities with their heads close together. It’s important to inform people in close contact with you, including your school or daycare.