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

Old Dog Losing Weight and Muscle Mass

While it is true that many dogs become chunkier as they age, some dogs begin to lose weight. "Why is my dog losing weight?" you may be wondering. This answer can fall into one of two categories: there is an underlying condition and it is a symptom of a larger problem, or your dog's aging process necessitates a different balance in their diet.

Causes of Senior Dogs Losing Weight That Are a Problem

Eight issues are frequently the root cause of weight loss in elderly dogs. These problems include liver and gallbladder disease, dehydration, dental problems, kidney disease, heart disease, diabetes, cancer, and arthritis. Each of these issues must be diagnosed and addressed by your veterinarian. The majority of these underlying causes will manifest as other symptoms associated with 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 can give you advice on what to feed an old dog that is losing weight but is otherwise eating.

In Conclusion

If your senior dog is losing a significant amount of weight rapidly go to your veterinarian as soon as possible. If you are concerned about your dog's weight in general, bring it up with your veterinarian at your senior 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 and it's concerning you, contact our Los Angeles vets right away to schedule an appointment for your dog.