As pet owners, we dread the day our companions show signs of illness, but a vet has explained everything you need to know.

Cancer: The leading cause of death in dogs. Common types in senior dogs include mast cell tumors, lymphoma, hemangiosarcoma, squamous cell carcinoma, oral melanomas, and osteosarcoma (bone cancer) ...

The causes of edema in dogs can vary widely, depending on the affected area. Here are some common categories: In addition, some cancers like lymphoma and mast cell tumors, can trigger edema ...