Anecdotal reports about a global rise in head lice cases have prompted warnings from some experts about a popular and universal activity among children and teenagers: taking selfies. Head lice, itchy ...

Children have returned to school and are bringing home stories about the things they learned and the friends they made. But some parents are concerned they could also be bringing home a tiny nuisance: ...

Head lice do not have preferences for clean or dirty hair. Anyone can get lice if they come into close contact with someone who has them. However, some research suggests that certain groups may be ...

The human-head louse has a ghostly quality. It tends to glimmer in and out of view, leaving only subtle signs and omens of its presence. Is that oblong speck an egg sac or a flake of dandruff? Was ...