Lice

Etiology

  • Parasitic insects that feed on human blood

Risk Factors

  • Contracted most commonly by direct (head-to-head) contact with infected person
  • Also via clothing that's infested (e.g. hats), bed sheets, couches
  • Spread via sexual contact (pubic lice)

Symptoms

  • Itching in hair
  • Often occurs in outbreaks amongst kids
  • Can also cause pubic region itching

Physical Exam Findings

  • Can sometimes see moving lice on scalp
  • Nits on hair shaft

Links