Head Lice Information

Return to the Parent Handbook Page.

Information For Parents

  • Head lice are tiny, wingless insects that live on the scalp and cause itching.
  • Nits are the oval eggs that the lice produce and attach to the hair strands close to the scalp.
  • According to the Center for Disease Control (CDC) and other health authorities, head lice are not a health hazard or sign of uncleanliness and are not responsible for the spread of any disease.
  • Nits (lice eggs) that are not viable (1/2 inch or more from the scalp) do not cause the spread of head lice.
  • A student is considered to have infestation with head lice if live lice and/or viable nits (those that are closer than ½ inch from the scalp) are observed.
  • Removal of nits located ½ inch or more from the scalp is recommended to avoid identification confusion.
  • Head lice screening programs are not recommended by the American Academy of Pediatrics because the screenings have not proven to have a significant effect on the incidences of head lice in a school community.
  • When several (3 or more) cases of lice infestation are identified in a classroom, the Lice Identified Letter will be sent to the parents of the students in the affected classroom.

Montgomery County Department of Health and Human Services Head Lice Guidelines