Sudden or rapid weight loss can indicate a serious problem in your pet. It is important to see your veterinarian right away if your pet loses unplanned weight. Below are the most common reasons for unwanted weight loss in pets:
- Cancer—particularly Intestinal Cancer
- Kidney Disease
- Hyperthyroidism in Cats
- Advanced Heart Disease
- Dental Disease
- Change in Diet
The sooner you address the weight loss with your veterinarian, the better it is for your pet.