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Why is my older dog losing weight?

While we are normally concerned with our dogs becoming overweight, as they become older senior dogs some canines start to lose weight. Here, Our Corpus Christi vets discuss weight loss in a senior dog and when you should be concerned.

Old Dog Losing Weight and Muscle Mass

Yes, it is true that a large number of dogs tend to get chunkier as they age. In some cases, however, a senior dog can actually lose weight. The question you may be asking yourself is "why is my dog losing weight?" There are two ways that this question can be answered. Either there is an underlying condition and it's a symptom of a larger issue, or your dog’s aging requires a different balance in their diet.

Cause of Weight Loss In Senior Dogs That Are a Problem

There are roughly 8 issues that are commonly the root problem in elderly dogs losing weight. These issues are liver/gallbladder disease, dehydration, dental issues, kidney disease, heart disease, diabetes, cancer, and arthritis. Each one of these concerns needs to be diagnosed and addressed by your veterinarian. Most of these root causes will present with other symptoms that accompany weight loss.

The best thing you can do for your senior dog that is losing weight is to observe them for the other symptoms so you can inform the vet so they can diagnose your dog quicker. The symptoms that can present with each condition are as follows.

Liver/gallbladder disease

      • Lethargy
      • Increased thirst
      • Vomiting/diarrhea
      • Fever
      • Pain 
      • Pale or yellow gums
      • Yellowing of skin/eyes

Dehydration

      • Dry gums 
      • Lethargy 
      • Sunken eyes
      • Loss of skin elasticity
      • Less urination
      • Dark urine

Dental Issues

      • Excessive drooling
      • Difficulty eating/chewing
      • Bad breath
      • Swollen or bleeding gums

Kidney disease

      • Increased thirst
      • Excessive urination (may contain blood)
      • Vomiting
      • Loss of appetite
      • Pale gums
      • Lethargy

Heart disease

      • A chronic cough
      • Tires easily
      • Exercise intolerance
      • Excessive panting
      • Irregular heartbeat
      • Restlessness

Diabetes

      • Excessive thirst
      • Excessive urination
      • Increased appetite
      • Lethargy
      • Repeated urinary tract infections

Cancer

      • Lethargy
      • Unusual bleeding
      • Lumps, bumps, or swelling
      • Distended abdomen
      • Limping or lameness
      • Unusual urination – frequency or amount

Arthritis

      • Wobbling
      • Lameness
      • Scuffing the toes
      • Incontinence

What to Do If No Underlying Medical Issues are Causing the Weight Loss

If your vet can’t find any underlying cause for the weight loss it might be time to change your dog's diet. Consult with your veterinarian about their current diet and the amount of protein, fat, and fiber they are getting. They should be able to help you find out what to feed an old dog that is losing weight but still eating.

In conclusion

If your older dog is losing a significant amount of weight, and rapidly, go to your veterinarian's office  as soon as possible. If you are worried about your dog's weight in general, bring it up with your veterinarian at your dog's bi-annual routine exam.

Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.

If your senior dog is losing weight, contact our Corpus Christi veterinarians right away to schedule an appointment.

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Everhart Animal Hospital is accepting new patients! Our experienced vets are passionate about the health of Corpus Christi companion animals. Get in touch today to book your pet's first appointment.

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