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Weight Loss in Older Dogs: When to Worry

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

Old Dog Losing Weight and Muscle Mass

As dogs age, it is common for them to lose some weight due to a decrease in muscle mass and changes in metabolism. However, if your older dog is losing weight rapidly or significantly (about 10% of their body weight), it could be a sign of an underlying health issue such as dental problems, thyroid issues, or cancer. It is important to consult with your veterinarian if you notice sudden or excessive weight loss in your older dog to determine the cause and appropriate treatment.

Causes of Senior Dogs Losing Weight

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.

When an old dog is losing weight, it is important to provide them with a diet that is high in protein and healthy fats to help maintain their muscle mass. Consider feeding them a senior dog food that is specifically formulated for weight management, or consult with your veterinarian to create a customized diet plan that meets their nutritional needs. Additionally, adding in small amounts of lean meats, vegetables, and supplements like fish oil can help support their overall health and weight maintenance. 

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 Blountville vets right away. We have after-hours emergency care to better serve you and your pet.

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Airport Pet Emergency Clinic is open weekday evenings, overnight, weekends and holidays to provide your pet with urgent care when needed. Our experienced Blountville vets are passionate about caring for companion animals.

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