12 warning signs of cancer in dogs that every owner should know
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If your dog collapses, get to the vet immediately. Collapsing, weakness and general lethargy (not greeting people at the door like usual or less interaction) are common signs of cancer, says Jake Zaidel, DVM, of Malta Animal Hospital in upstate New York. “I see this particularly in large breed dogs – even if they fall down and seem better the next day, bring them in because it could signal a tumour of the spleen,” says Dr. Zaidel.