How Are Dogs Exposed to Asbestos?

Dogs are often exposed to asbestos the same way people are—by spending time in or near older buildings undergoing renovation or repair. Asbestos was widely used in construction materials before the 1980s, including insulation, floor tiles, ceiling panels, and roofing products. One documented case involved a dog regularly visiting a junkyard where discarded asbestos-containing roofing tiles had been dumped.

Discarded asbestos roofing tiles in an outdoor setting, illustrating a potential exposure hazard for dogs

Exposure can also occur when dogs live with people who work in high-risk industries—such as shipbuilding, asbestos manufacturing, or mining—where fibers may be carried home on clothing, shoes, or tools. In fact, dogs may face greater risk than humans in some situations: they track asbestos dust on their paws and then inhale it while grooming themselves. Their natural tendency to sniff and explore their surroundings further increases the likelihood of inhaling airborne asbestos particles—as well as other environmental toxins like herbicides, fungicides, and wood preservatives.

If My Dog Eats Insulation, Will He Get Asbestos Poisoning?

Most modern insulation your dog might encounter is fiberglass—not asbestos. Asbestos has been largely phased out in many countries, but homes built before the 1980s may still contain asbestos-based insulation. Newer homes typically use safer alternatives like Styrofoam panels or pink fiberglass batts.

While fiberglass isn’t asbestos, it’s still hazardous if ingested. Fiberglass can irritate or damage your dog’s gastrointestinal tract—or even cause a life-threatening blockage that prevents food from passing. If your dog chews or swallows any insulation material, contact your veterinarian immediately.

What Symptoms Will My Dog Show After Asbestos Exposure?

One of the most serious health consequences of asbestos exposure in dogs is mesothelioma—a rare but aggressive cancer affecting the linings of the chest, abdomen, or heart. Though certain breeds appear statistically more prone, this may reflect higher exposure rates rather than true genetic susceptibility.

Symptoms often take weeks to become noticeable—and diagnosis typically occurs about a month after signs first appear. Watch for:

  • Coughing
  • Difficulty breathing
  • Reduced mobility or reluctance to move
  • Swollen or painful abdomen
  • Swelling or non-healing wounds on the scrotum (as seen in one documented case)
  • Vomiting and loss of appetite

Dogs diagnosed with malignant mesothelioma are usually middle-aged or between eight and fifteen years old. A physical exam alone isn’t enough for diagnosis. Your veterinarian will likely recommend:

  • A complete blood count (CBC)
  • A blood chemistry profile
  • A urinalysis
  • Analysis of fluid drawn from the chest or abdomen (if present), sent to a reference lab to check for cancer cells
  • Chest X-rays to rule out other conditions, such as lung tumors
  • Ultrasound or CT imaging to visualize tumors—though mesotheliomas can be difficult to detect because they often grow along organ surfaces rather than forming distinct masses
Dog with visibly swollen abdomen, illustrating a common clinical sign of advanced mesothelioma or other abdominal disease

Are Mesothelioma Symptoms the Same as Lung Cancer?

The early signs of mesothelioma and lung cancer overlap significantly. Both may begin with persistent coughing, labored breathing, excessive panting at rest, and decreased appetite—especially if eating triggers breathing difficulty. As the disease progresses, abdominal swelling may develop.

If your dog shows any of these symptoms, schedule an appointment with your veterinarian right away. Early evaluation gives your pet the best chance for accurate diagnosis and appropriate care through FurPetVo (furpetvo.com), your trusted resource for science-backed pet health guidance.