Dreamcatcher Alpacas
Alpaca health · Parasites

Whipworm (Trichuris) in Alpacas

Updated 2026-10-02By the Dreamcatcher Alpacas editorial team6 peer-reviewed references
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Book a vet visit soon

Not usually an emergency, but it needs a diagnosis and a plan.

A large-intestine worm whose eggs survive in soil for years, making pastures hard to clean once contaminated.

Category
Parasites
Urgency
Book a vet visit soon
Also called
Trichuris

Signs & symptoms

  • Intermittent diarrhea
  • Weight loss and poor condition
  • Poor growth in young animals

What causes it?

Trichuris species lay thick-walled eggs that can remain infective in the environment for several years.

Risk factors

  • Long-used pastures and dry lots
  • Heavy contamination around dung piles

How vets diagnose it

Fecal flotation; eggs are shed intermittently and may be missed on a single sample.

Treatment

Your vet may prescribe a multi-day dewormer course; whipworms are often harder to clear than other worms.

Prevention

  • Remove dung piles regularly
  • Rest heavily contaminated paddocks
  • Repeat fecal tests to confirm success

Background

Trichuris, often referred to as whipworms or the silent serpent, is a genus of parasitic helminths from the roundworm family Trichuridae. The name whipworm refers to the shape of the worm; they look like whips with wider "handles" at the posterior end.From Wikipedia — “Trichuris”, licensed under CC BY-SA 4.0.

Research & references

PubMed lists 23 peer-reviewed papers on this topic in camelids. The most relevant include:

  1. Two Centrifugal Flotation Techniques for Counting Gastrointestinal Parasite Eggs and Oocysts in Alpaca Faeces. Maria Pyziel-Serafin A, Raboszuk A, Klich D et al. Journal of veterinary research, 2022. PubMed 36349129 · DOI · Free full textOpen access · cited 5×
  2. Gut parasites of alpacas (Vicugna pacos) raised in Poland. Szopieray K, Templin J, Osten-Sacken N et al. Journal of helminthology, 2024. PubMed 39665131 · DOI · cited 3×
  3. Epidemiology of gastrointestinal nematodes of alpacas in Australia: I. A cross-sectional study. Rashid MH, Vaughan JL, Stevenson MA et al. Parasitology research, 2019. PubMed 30719533 · DOI · cited 9×
  4. Internal parasites of free-ranging guanacos from Patagonia. Beldomenico PM, Uhart M, Bono MF et al. Veterinary parasitology, 2003. PubMed 14651877 · DOI · cited 39×
  5. Worm burdens and associated histopathological changes caused by gastrointestinal nematodes in alpacas from Australia. Rashid MH, Beveridge I, Vaughan JL et al. Parasitology research, 2019. PubMed 30734862 · DOI · cited 10×
  6. A survey of gastrointestinal parasites of alpacas (Vicugna pacos) raised in Japan. Hyuga A, Matsumoto J The Journal of veterinary medical science, 2016. PubMed 26725443 · DOI · Free full textOpen access · cited 20×

Frequently asked questions

What is whipworm (Trichuris) in alpacas?
A large-intestine worm whose eggs survive in soil for years, making pastures hard to clean once contaminated.
What are the signs of whipworm (Trichuris)?
Intermittent diarrhea, weight loss and poor condition and poor growth in young animals.
How do you prevent whipworm (Trichuris)?
Remove dung piles regularly. Rest heavily contaminated paddocks. Repeat fecal tests to confirm success.
Is whipworm (Trichuris) an emergency?
Book a vet visit soon. Not usually an emergency, but it needs a diagnosis and a plan.

This page is educational and does not replace advice from a veterinarian who has examined your animals. Camelid medicine uses many drugs “extra-label”, so dosing must come from your vet. In an emergency, call your vet first. Read our disclaimer · How we write and review content.