Gastrointestinal roundworm parasitism in hedgehogs
Gastrointestinal parasitism caused by roundworms (nematodes) is very common in North African hedgehogs, both in the wild and in captivity. These small worms live in the animal's stomach or intestines and feed at its expense. A light infest...
What is it?
Gastrointestinal parasitism caused by roundworms (nematodes) is very common in North African hedgehogs, both in the wild and in captivity.
These small worms live in the animal's stomach or intestines and feed at its expense. A light infestation often goes unnoticed, but a heavy parasite burden can seriously weaken the hedgehog, especially if it is young, elderly, or already in poor health.
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:
Signs are not always visible early on.
When the infestation becomes severe, progressive weight loss may occur despite an appetite that is sometimes maintained, a dull and less dense coat, diarrhea or soft stools, and sometimes vomiting.
The animal becomes more tired and less active, and may become dehydrated. In some cases, worms or worm fragments are visible directly in the feces. In young hedgehogs, delayed growth is possible.
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 can parasitize the digestive tract of North African hedgehogs, including worms similar to those in the genera Capillaria, Crenosoma, or other gastrointestinal nematodes specific to hedgehogs.
The hedgehog becomes infested by ingesting eggs or larvae present in the environment, on prey (insects, slugs, snails) which may serve as intermediate hosts, or by feeding on soil contaminated with feces containing parasites.
Young hedgehogs, stressed hedgehogs, animals found after trauma (injury, difficult hibernation) or already weakened by another illness are more susceptible.
Group housing, an uncleaned outdoor enclosure, inadequate bedding hygiene, and access to uncontrolled wild prey increase the risk of infestation or reinfection.
Transmission
Transmission occurs through ingestion of eggs or larvae present in contaminated surroundings, or through prey (insects, slugs, snails) that serve as intermediate hosts for certain parasites.
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
The veterinarian will review the hedgehog's history (wild or captive origin, general condition) and perform a clinical examination.
Confirmed diagnosis relies on faecal analysis (coprology) to identify parasite eggs. In some cases, additional tests (blood work, imaging) may be recommended to assess the overall impact of infestation.
Treatment
Treatment involves administering an appropriate antiparasitic agent, selected and dosed by the veterinarian based on the identified parasite and the animal's condition.
Supportive care may be added: fluid replacement, nutritional support, and treatment of any complications (secondary infection, severe dehydration).
Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.
Prevention
Regular cleaning of the habitat and daily removal of droppings reduce the risk of reinfection.
It is advisable to avoid feeding the animal uncontrolled wild prey, to quarantine any new hedgehog before introducing it to others, and to perform regular parasite screening (faecal examination), especially in animals found in the wild.
Preventive veterinary monitoring is recommended for captive hedgehogs or those intended for release.
Possible complications
Heavy untreated infestation can lead to severe weight loss, significant dehydration, and general weakness that makes the animal susceptible to other infections.
In very young or already fragile animals, the outcome may be fatal if treatment is delayed too long.
When to see a veterinarian
The hedgehog is losing weight despite eating normally.
Worms or suspicious material are visible in the droppings.
The animal has diarrhoea that persists or worsens.
The hedgehog becomes unusually lethargic, weak, or refuses to eat.
Any hedgehog found in the wild should receive a veterinary check before being housed with other animals.
Prognosis
The outlook is generally good when the infestation is detected and treated early, particularly in an otherwise healthy animal.
It becomes more guarded in very young, elderly, or already weakened individuals, or if treatment is delayed.
Frequently asked questions
Can hedgehog parasites be transmitted to humans or other domestic animals?
Gastrointestinal nematodes specific to hedgehogs are generally not transmitted to humans or to dogs and cats. However, it is still recommended to wash your hands after handling and to clean the equipment used.
Can a hedgehog without symptoms still be parasitic?
Yes, a light infestation may produce no visible signs. That is why stool examination is useful even in an animal that appears healthy, especially if it comes from the wild.
Can you give an over-the-counter antiparasitic medication without veterinary advice?
No, this is not recommended. The choice of product and its adaptation to the animal's species and condition must be made by a veterinarian, to avoid the risks of toxicity or ineffectiveness.
Should a hedgehog infested with parasites be isolated from the other animals in the household?
Yes, it is prudent to separate it during treatment time and thoroughly clean its habitat, in order to limit the risk of parasite eggs spreading in the environment.
References
ESCCAP — European Scientific Counsel Companion Animal Parasites
WSAVA — World Small Animal Veterinary Association
Content reviewed by the TunisieVet editorial team · Updated 01 September 2026
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