Head lice are tiny insects that live on the scalp and feed on human blood. They are most common among children, but anyone can get them. Head lice are not harmful, but they can cause itching and discomfort. They spread easily through close contact, like sharing hats or brushes, and can be a nuisance in schools and daycare centers. To get rid of head lice, special shampoos and treatments are available. It's important to wash bedding and clothing in hot water to eliminate any lice or eggs, known as nits. Regular checks can help catch infestations early and keep children lice-free.