Lice Thrive in Either Dirty or Clean Hair, Advice on Lice Offers the Best Head Lice Treatment for Infestations
It's a long-held belief that lice and nits prefer to infest hair that is unclean. Research has proven that this simply isn't the case. They do seem to prefer longer hair, which would put girls more at risk of contracting the parasites then boys. However, lice are mainly interested in feeding off the blood in the scalp, and so the cleanliness of the hair is not an issue.