Therefore if found anywhere other than on a human scalp they die quickly. Head lice cannot be caught from animals or pets. It is not only children who can be infected by head lice. Adults can catch them also. It is believed that head lice prefer short hair to long, as it is easier for them to crawl from one head to another.
Head lice can effect clean or dirty hair.
Anyone can catch head lice. Once caught, head lice may breed and increase slowly in number. The only way that you will know that you have head lice is by looking for them very carefully. Most people will only realise that they have head lice when they develop itching. Remember, there can be other causes of an itchy scalp e.g. eczema.