Physiology and Structure
- Resembles the handle and lash of a whip.
- Ingested eggs hatch into a larval worm in the small intestine and migrate to the cecum.
- Female worms can produce up to 3000 to 10,000 eggs per day.
- Female worms can live for up to 8 years.
- Eggs become infectious once they have been in contact with soil for 3 weeks.
- Eggs are barrel in shape.
Female trichuris trichiura
- Most infections are with small numbers of Trichuris organisms.
- infections with many larvae may produce abdominal pain and distention, bloody diarrhea, weakness and weight loss.
- Appendicitis may occur as the lumens and the prolapse of the rectum when it is filled with worms.
- Anemia and eosinophilia are also seen in severe infections.
Treatment, Prevention and Control
- Drug of choice is mebendazole.
- Good personal hygiene adequate sanitation and avoidance of the use of human feces as fertilizer are various ways to prevent infection.