Which age groups are at highest risk for pediculosis and pthiriasis (lice infestation)?

Updated: Mar 01, 2018
  • Author: Lyn C C Guenther, MD, FRCPC, FAAD; Chief Editor: Michael Stuart Bronze, MD  more...
  • Print
Answer

Children aged 3-11 years are most likely to become infested with head lice because of close contact in classrooms and day care facilities. Head lice are much less common after puberty. Body lice are more common in adults, but can affect all ages. [25] Age is not a significant risk factor in body louse infestation; body lice are indiscriminate in regard to the age of their host. P pubis infestation is more common in people aged 14-40 years who are sexually active.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!