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The most frequent causes of dog death and pet disease among old dogs are cancer, cardiac failure, and renal failure. In younger dogs, bloat, and immune-mediated diseases are significant.
Causes of Death in Dogs |
| Cancer |
37.1% |
| Bloat or Gastric Dilatation Volvulus |
27.6% |
| Old age and other |
16.5% |
| Kidney failure |
8.2% |
| Immune-mediated disease |
7.6% |
| Addison's disease |
5.9% |
| Heart disease and stroke |
3.5% |
| Seizures |
1.2% |
The most common causes of cat death in senior cats are kidney failure, cancer, and infectious disease such as FIV (feline immunodeficiency virus). Cats also suffer from hyperthyroidism, which causes high blood pressure; inflammatory bowel disease; diabetes; arthritis; and dental disease.
Cats are less inclined to develop cancer than are dogs, but cats with cancer tend to have malignant disease, whereas in dogs, it may be benign. For example, 60% of dogs with skin masses will have benign disease that will not grow aggressively or spread to other locations; but only 20% of cats with skin masses will have benign disease.
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The articles here were answered by a variety of pharmacists and veterinarians
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