12 warning signs of cancer in dogs that every owner should know
5 of 12
Sores, lumps, a strange odour, bleeding or a change in gum colour can be a sign of oral cancer, particularly in older dogs. This cancer sign in dogs often goes unnoticed for too long. “We commonly find visible oral tumours because people don’t examine their pet’s mouth,” says Dr. Zaidel. “Many oral tumours can be really devastating because people don’t find them until it’s really advanced.” He also suggests brushing on a regular basis.