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Whipworm infection
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Whipworm infection

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Trichuriasis

Whipworm infection is an infection of the large intestine with a type of roundworm.

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  • Causes

    Whipworm infection is caused by the roundworm, Trichuris trichiura. It is a common infection that mainly affects children.

    Children may become infected if they swallow soil contaminated with whipworm eggs. When the eggs hatch inside the body, the whipworm sticks inside the wall of the large intestine.

    Whipworm is found throughout the world, especially in countries with warm, humid climates. Some outbreaks have been traced to contaminated vegetables (believed to be due to soil contamination).

  • Symptoms

    Symptoms range from mild to severe. Sometimes, there are no symptoms. A severe infection may cause:

    • Bloody diarrhea
    • Iron-deficiency anemia
    • Fecal incontinence (during sleep)
    • Rectal prolapse
  • Exams and Tests

    A stool ova and parasites exam reveals the presence of whipworm eggs.

  • Treatment

    Mebendazole taken by mouth for 3 days is commonly prescribed when the infection causes symptoms. Albendazole or

  • Outlook (Prognosis)

    Full recovery is expected with treatment.

  • When to Contact a Medical Professional

    Seek medical attention if you or your child develop bloody diarrhea. In addition to whipworm, there are many other infections and illnesses that can cause similar symptoms.

  • Prevention

    Improved facilities for feces disposal have decreased the incidence of whipworm.

    Always wash your hands before handling food. Thoroughly washing food may also help prevent this condition.

Related Information

  DiarrheaRectal prolapseDehydrationAnemia     Anemia

References

Maguire JH. Intestinal nematodes (roundworms). In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2009:chap 287.

Diemert DJ. Intestinal nematode infections. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 365.

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Review Date: 10/6/2012  

Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.

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