Metabolic bone disease of pangolins
Metabolic bone disease of pangolins is a skeletal disorder linked to nutritional imbalance or lack of natural light. It affects mainly pangolins kept in captivity, in rescue centres or illegal breeding operations, whose diet does not accura...
What is it?
Metabolic bone disease of pangolins is a skeletal disorder linked to nutritional imbalance or lack of natural light. It affects mainly pangolins kept in captivity, in rescue centres or illegal breeding operations, whose diet does not accurately reflect their natural diet of ants and termites. Bones become progressively fragile and deformed, causing pain and disability in the animal. This condition is seen almost never in wild-living pangolins.
Key point
The pangolin is a protected species and threatened with extinction; all care must involve veterinarians specialized in exotic animals and must comply with regulations protecting these species.
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:
Early signs are subtle: the animal moves less, eats less and appears tired.
With time, limb stiffness, lameness or hesitant gait develops.
Bones of the legs, spine or jaw may become slightly deformed and tender to touch.
In advanced cases, the pangolin has difficulty rising or moving around, and fractures can occur even with gentle handling.
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Causes and risk factors
The main cause is an imbalance between calcium and phosphorus in the diet given in captivity, often made worse by vitamin D deficiency. The pangolin is a highly specialised animal that feeds almost exclusively on ants and termites; any poorly formulated substitute diet (minced meat, eggs, dairy products, non-varied insects) exposes the animal to this imbalance. Lack of exposure to natural light, necessary for vitamin D synthesis in some species, can worsen the disorder.
Pangolins recently seized during illegal trafficking or kept in prolonged captivity are most at risk, as their diet is difficult to reproduce faithfully.
Young growing animals and pregnant or nursing females have higher mineral requirements and are therefore more vulnerable.
Chronic stress related to captivity can further disrupt appetite and nutrient absorption.
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
The veterinarian suspects this disease when signs of lameness, stiffness, or deformity appear in a captive pangolin, especially if the diet is known to be poorly balanced. Diagnosis is based on clinical examination, careful palpation of the skeleton, and radiographs that show decreased bone density. Blood tests allow assessment of calcium and phosphorus levels.
Treatment
Management is based on progressive dietary correction with appropriate mineral and vitamin supplements, under strict veterinary control because correction that is too rapid can be harmful. Rest with limited handling is necessary to prevent fractures. Controlled exposure to light may be added depending on the case. Pain relief may be used as an additional measure.
Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.
Prevention
Prevention depends on providing a diet as close as possible to the natural diet, formulated with the help of exotic animal nutrition specialists and ideally enriched with ants, termites, or a variety of insects. Access to natural light or appropriate lighting may be recommended depending on the species' needs. Regular veterinary monitoring of animals in rescue centers allows early detection of any signs of deficiency before bone lesions develop.
Possible complications
Possible complications include spontaneous fractures, permanent skeletal deformities, and inability to move normally, which severely compromises the chances of releasing the animal back into the wild.
When to see a veterinarian
A captive pangolin that eats less or becomes unusually inactive.
Lameness, stiffness, or reluctance to move.
Visible deformity of a limb, spine, or jaw.
Any handling that appears to cause significant pain.
Prognosis
The outlook depends on the stage at which the disease is detected. When managed early, the animal can recover much of its mobility through corrected nutrition. In advanced cases with deformities or multiple fractures, the damage may be permanent and severely limit the chances of successful release back into the wild.
Frequently asked questions
Do wild pangolins suffer from this disease?
No, it is almost exclusively found in captive animals, because wild pangolins naturally feed on ants and termites that meet their nutritional needs.
Can pangolins be fed meat or pet food kibble? No, pangolins cannot be fed meat or standard pet food. Pangolins are specialized insectivores that eat exclusively ants and termites in the wild. Their long, sticky tongue and specialized digestive system are adapted solely to consuming insects. Pet food and meat would be nutritionally inappropriate and could cause serious digestive problems or malnutrition. If a pangolin is in captivity, it requires a diet of live ants or termites to survive, which is why pangolins are extremely difficult to keep alive outside their natural habitat.
No, this type of diet does not match his natural nutritional needs and actually promotes this kind of bone disorder. Specialized advice is essential.
Is the disease reversible?
If detected early and the diet is corrected under veterinary supervision, improvement is possible. Advanced cases often leave lasting effects.
Why are captive pangolins particularly at risk?
Because these are highly specialized animals whose natural diet is extremely difficult to reproduce faithfully outside their native environment.
References
WOAH — Organisation mondiale de la santé animale (ex-OIE)
Content reviewed by the TunisieVet editorial team · Updated 26 August 2026
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