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Whipworm infection

Contents of this page:

Illustrations

Trichuris trichiura egg
Trichuris trichiura egg

Alternative Names    Return to top

Trichuriasis

Definition    Return to top

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

Causes    Return to top

Whipworm infection is caused by the roundworm, Trichocephalus 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. The main risk factor for infection is swallowing soil contaminated with feces. Some outbreaks have been traced to contaminated vegetables (believed to be due to soil contamination).

Symptoms    Return to top

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

Exams and Tests    Return to top

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

Treatment    Return to top

Mebendazole taken by mouth for 3 days is commonly prescribed when the infection causes symptoms. Albendazole is used as an alternative therapy.

Outlook (Prognosis)    Return to top

Full recovery is expected with treatment.

When to Contact a Medical Professional    Return to top

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    Return to top

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.

References    Return to top

Kazura JW. Nematode infections. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 378.

Update Date: 9/28/2008

Updated by: Jatin M. Vyas, PhD, MD, Instructor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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