Head lice are a very common problem and even more so in schools with children aged 4-11. It is thought that more than 1 in 3 children in the UK will get head lice at some point during the school year. Head lice are tiny insects with no wings that live in human hair. They are grey-brown in colour and are roughly the size of a pinhead when they have hatched and the size of a sesame seed when they are fully grown.
Head lice cannot jump, fly or swim and are spread by head-to-head contact. They climb from the hair of the person that is infected onto the hair of someone else. Having head lice does not mean that you have dirty hair or bad hygiene as they can affect all hair types no matter what condition it is in or the length of the hair. Head lice only affect humans and cannot be caught from animals or passed onto them.