What Causes Head Lice?
Reviewed: Dr. Gromatzky
Head lice are small insects that live among the hairs on our head. Here, they will live and breed, feeding on a plentiful supply of fresh blood. They get to our blood by biting through the thin layer of skin on the scalp to reach the blood vessels below.
Head lice are typically harmless to us, which is fortunate because they are also very common. Although they are harmless, head lice can still cause some rather irritating symptoms, but treating them is relatively straight forward. They can infect people of all ages, but they tend to infect children far more frequently than they infect adults.
