Young man veterinarian checking up the dog on table in veterinary clinic. Healthcare, medicine treatment of pets. Dogue de bordeaux.© maxbelchenko/Shutterstock.com ...

Add Yahoo as a preferred source to see more of our stories on Google. A mast cell tumor in dogs usually requires surgical removal. Photo: Getty Images While petting, a small lump under the skin is ...

Between going on walks, running to the door, and jumping on the couch, many dogs spend most of their day on their feet. But when a dog's routine suddenly slows down, owners might not realize that the ...

Tumors develop when cells in the body grow uncontrollably. Finding a tumor on your dog can be very frightening, but they are not always detrimental — some are benign, while others are malignant.