Prevalence of lice in students Muhammad Moradi, Head of the Adolescent, Youth and School Health Department at the Ministry of Health: Lice are transmitted through direct contact or shared use of personal items such as combs, hats and towels. Severe itching of the head is the most important sign of infection, and lice and its eggs are mainly seen behind the ears and the nape of the neck. Hair cutting is not necessary for treatment and family members should also be checked ISNA website yes Instagram.