Armadillo gastrointestinal parasitism (roundworms)
Gastrointestinal parasitism of the armadillo includes all infestations by roundworms (nematodes) lodged in the stomach or intestine of the animal. These parasites are common in armadillos living in the wild, particularly the nine-banded a...
What is it?
Gastrointestinal parasitism of the armadillo includes all infestations by roundworms (nematodes) lodged in the stomach or intestine of the animal.
These parasites are common in armadillos living in the wild, particularly the nine-banded armadillo. They are also observed in animals kept in captivity, in zoos or in wildlife care centers.
Most armadillos carrying a few worms remain in apparent good health. The problem occurs especially when the parasitic load becomes significant, or when the animal is otherwise weakened (stress, injury, other illness).
Commonly observed signs
These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.
Related signs — each one links to its page:
Many infested armadillos show no visible signs, especially if worm counts are low.
When the infestation becomes significant, we can observe progressive weight loss despite a preserved appetite, or on the contrary a drop in appetite.
The coat (the armadillo's thinning hairs) may become dull and the body appear less vigorous. Digestive problems are possible: loose stools or diarrhea, sometimes with the visible presence of worms in the stools.
In young armadillos, stunted growth and a swollen belly are important warning signs. Dehydration and marked depression can appear in severe forms, especially in the event of a massive infestation combined with captivity stress.
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Causes and risk factors
Several species of nematodes (roundworms) can colonize the armadillo's digestive tract. These worms attach themselves to the wall of the stomach or intestine, feed at the expense of the host and disrupt normal digestion and absorption of nutrients.
Infestation most often occurs by accidental ingestion of eggs or larvae present in the soil, water or on prey (insects, larvae) that the armadillo unearths while digging. The armadillo's burrowing lifestyle, very close to the ground, favors this repeated contact with the infesting forms of parasites.
Young animals, whose immune systems are still immature, are more vulnerable to severe forms.
The high density of animals on the same burrow or in the same enclosure increases the risk of cross-contamination.
Stress linked to captivity, a poorly maintained habitat with accumulation of fecal matter, or an unbalanced diet weaken natural defenses and encourage the multiplication of parasites.
A moist soil rich in organic matter, conducive to the survival of eggs and larvae, is also a favorable factor.
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
The veterinarian makes the diagnosis mainly by parasitological examination of the stools (search for worm eggs under a microscope).
This examination makes it possible to identify the type of parasite involved and to approximately assess the importance of the infestation. A complete clinical examination of the animal, with assessment of its general condition and weight, completes the assessment.
In some cases, blood tests may be offered to check for anemia or associated inflammation.
Treatment
Treatment is based on the administration of specific antiparasitics against roundworms, prescribed and adapted by the veterinarian according to the species of parasite identified and the condition of the animal.
Supportive measures may be combined in the event of dehydration or general weakening, such as rehydration or nutritional support.
Treatment of the environment (cleaning, disinfection) systematically accompanies drug treatment to avoid rapid reinfestation.
Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.
Prevention
Regular cleaning of enclosures and removal of feces limits the accumulation of parasite eggs in the environment.
Periodic veterinary control of stools, by parasitological examination, makes it possible to identify an infestation before the appearance of clinical signs.
In captivity, avoiding overpopulation and maintaining good substrate hygiene greatly reduces the risk. A suitable and balanced diet strengthens the animal's natural resistance to parasites.
Possible complications
A massive and untreated infestation can lead to severe weight loss, significant dehydration and general weakening of the animal.
In young people, lasting growth retardation is possible. In the most serious cases, intestinal obstruction by a large number of worms or digestive perforation can occur, threatening life.
When to see a veterinarian
Persistent diarrhea or abnormal stools in armadillos
Visible weight loss despite a normal appetite
Presence of visible worms in the stools
Bloating or hard stomach to the touch
Marked depression or refusal to eat
Retardation in growth in a young armadillo
Prognosis
The prognosis is generally good when the infestation is detected early and treated promptly, with a return to normal within a few weeks.
The prognosis becomes more guarded in the event of massive infestation, young age, or digestive complications such as obstruction. Veterinary follow-up after treatment makes it possible to verify the effectiveness of the treatment.
Frequently asked questions
Can armadillo worms be transmitted to humans or other pets?
Gastrointestinal nematodes specific to armadillos are generally quite specific to this species. The risk of direct transmission to humans or domestic animals is considered low, but any handling of a wild armadillo must remain cautious and supervised by a professional.
Can an armadillo live normally with a few intestinal worms?
Yes, a low parasite load is often well tolerated, especially in a healthy adult. The problem appears especially in the event of a significant infestation or weakening of the animal.
How do you know an armadillo is infested without seeing it vomit worms?
The most reliable sign remains the examination of the stool by a veterinarian, who looks for parasite eggs under a microscope. Visible signs such as weight loss or diarrhea often only appear at an advanced stage.
Should we systematically treat all armadillos in captivity against worms?
The decision is made by the veterinarian, based on the results of regular parasitological checks. Systematic treatment without diagnosis is not recommended.
References
WOAH — Organisation mondiale de la santé animale (ex-OIE)
CDC — Centers for Disease Control and Prevention
Content reviewed by the TunisieVet editorial team · Updated 30 October 2026
Comments (0)
No comments yet.
AT A GLANCE
Need a veterinarian?
Find a practitioner near you on TunisieVet, with their specialities, hours and contact details.
Find a veterinarianCategories
Affected species
This information is provided for educational purposes only and is not a substitute for a veterinary consultation. If you have any concerns about your animal's health, consult a veterinarian.
Thinking of welcoming a pet? Dogs and cats are waiting for a family in Tunisia, and adoption is completely free.
Adoption listingsTo discover
Related diseases and linked Animalia content.
Armadillo pododermatitis
Bacterial
Armadillo leprosy (Mycobacterium leprae infection)
Bacterial
Armadillo pneumonia
Bacterial
Armadillo cutaneous parasitism (scabies and mites)
Parasitic
