Dictionary > Trichuriasis


A form of helminthiasis caused particularly by whipworm infestation
Trichuriasis is a helminthiasis that is caused by whipworms. Whipworms are parasitic nematodes of the family Trichuridae. These worms are characterized by their whip-like appearance. Their anterior end is slender and long whereas their posterior end is thick and resembling a handle.
Trichuriasis in humans is caused by Trichuris trichiura (or Trichocephalus trichiuris). The adult worms are found in the large intestine of the human host and may live for over than a year. The female whipworm can produce 2,000 to 10,000 eggs per day. The eggs are released along with the stool. Ingestion of the embryonated egg is the mode of infection. The larva hatches from the egg in the small intestine to grow and develop. In time, the larva moves to the large intestine to attain maturity. The worms are 30-50 mm in length and attach themselves to the mucosa of the large intestine. Adult worms may live 4-8 years.
It may be the most common helminthic infection found in Americans returning from subtropical and tropical areas. Often, trichuriasis has no symptoms but heavy whipworm infestation can lead to abdominal pain and distention and bloody or mucous-filled diarrhea are some of the common symptoms. Treatment is with mebendazole.
Word origin: Trichiura (“whipworm”) + –isis

  • whipworm infection
  • whipworm infestation

See also:

  • whipworm
  • Trichuris trichiura
  • helminthiasis
  • nematode

    You will also like...

    Neurology of Illusions
    Neurology of Illusions

    Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..

    A sperm cell fertilizing an ovum
    Human Reproduction and Fertilization

    For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..

    Schematic diagram of bacterial lactose operon
    Gene Action – Operon Hypothesis

    This tutorial focuses on the way genes control and determine every aspect of the body. It describes lac operon as an exa..

    Independent Assortment and Crossing Over
    Independent Assortment and Crossing Over

    This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

    An artistic depiction of a human embryo
    Growth and Development of a Human Baby

    Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

    bryophyte - sporophyte and gametophyte
    Meiosis and Alternation of Generations

    Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..