Revision as of 03:15, 28 November 2013 by JCMiller (talk | contribs) (Enterobius)
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  • Colloquially known as pinworm (United States), Treadworm (UK and Australia) or Seatworm
  • World wide distribution
  • Risk factors (prevalence can reach up to 50% in these populations):
    • Age under 18
    • Institutionalized
    • Cohabitation with infected individual
  • Humans only known reservoir
  • Transmitted by fecal-oral route
  • Can survive outside of body for up to 3 weeks

Clinical Features

  • Pruritus Ani (intense itching of the perianal region)
  • Rarer symptoms include abdominal pain, appendicitis and infection of the female genital tract


  • Tape test
    • Most common
    • Touch transparent tape to the perianal region and examine for eggs under the microscope
  • Can also test by examining scrapings under pt's fingernails or examining perianal region 2-3 hours after patient falls asleep
  • Stool analysis does not work because of low egg burden in stool


  • Idiopathic pruritus ani
  • Helminth infections


  • Mebendazole
  • Albendazole

See Also