Decrease in Activity Level

Physical activity level of pet is decreased or it has a loss of energy. A decreasing level of physical activity of your cat or dog may be a sign of a medical condition. Although a decrease in physical activity is a symptom often seen in aging cats or dogs, it is always advised to consult a veterinarian. Sometimes the solution can be a change in diet. However, some causes may need a medical treatment.

Decrease in Activity Level

How to Recognize

If your pet shows a decreased interest in activity, it can be a sign something is wrong. Your pet may appear weak, fatigued, tired, and sleep more often.


A decrease in activity level can be the sign of an infection, such as Heartworms or Kennel cough, or of a disease, such as Diabetes, heart disease, or liver disease. Arthritis or other joint/muscle pain may also be the cause.


While a decrease in activity level can simply be due to old age or hot weather, it can also be a sign something is wrong. It is important to seek veterinary care if your pet shows a decrease in activity level.


A decrease in activity level may be solved as simply as a change in diet, or your pet may need medical treatment. Medication can also cause lethargy in animals, so be wary of any medications prescribed to your pet if they are already showing a decrease in activity level.

Decrease in Activity Level Affects

  • Dogs
  • Cats

Similar Symptoms

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