As our dogs get older, they are at a greater risk for many diseases, including cancer. Almost one-third of all dogs more than seven years old will experience cancer at some point in their lives. In fact, cancer is the leading cause of death in pet dogs in the United States, with as many as 50 percent of pets dying from the illness. Therefore, it’s important to keep a careful eye on your senior dog‘s health and behavior to remain alert to any signs of cancer as soon as possible, before the disease spreads.

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Unfortunately, cancer is a complicated illness. There are many different types, such as lymphoma, melanoma, and prostate cancer, and the illness can occur all over the body. Cancer is defined as uncontrolled growth of abnormal cells, but the signs and symptoms vary greatly depending on the location and type. So, monitoring your older dog’s overall health is essential. The Flint Animal Cancer Center recommends watching for the following signs of illness:

1. Unusual swellings, lumps, or bumps that persist or continue to get larger. These growths could appear anywhere on your dog’s body, so be sure to examine your entire pet regularly. This is best done during petting or cuddle sessions, or can be a part of your dog’s weekly grooming routine

2. Sores that don’t heal. Any open wound that does not heal can be a sign of cancer or other problems, such as an infection.

3. Weight loss. If your pet is on a diet, weight loss is to be expected, but otherwise illness could be causing your dog’s weight to drop.

4. Loss of appetite can be a sign of illness. Older dogs may not eat as much as they did when they were younger, after all they may not be as active, but it is not healthy for a dog to lose interest in food.

5. Discharge from any opening in the body, such as the nostrils, mouth, or anus. This includes bleeding, vomiting, and diarrhea, as well.