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Lethargy

Lethargy is a condition in which your dog is less active, energetic and motivated than normal. Lethargy can be a sign of various health problems, but it can also be a normal reaction to certain situations. In this article, you'll learn what can cause lethargy in dogs, how to recognize it and what you can do about it.

What are the causes of lethargy in dogs?

There are many possible causes of lethargy in dogs, ranging from harmless to serious. Some of the most common are:

  • Age. Older dogs tend to become less active and need more rest than younger dogs. This is completely normal and nothing to worry about as long as your dog still shows interest in his surroundings and has no other symptoms.
  • Heat. High temperatures can make your dog tired and listless, especially if he has a thick coat or is a brachycephalic breed (such as a pug or bulldog). Make sure your dog always has enough water available and avoid leaving him in the blazing sun or in the car.
  • Stress. Stress can have different effects on your dog, depending on how he handles it. Some dogs become restless and nervous, others withdraw and become lethargic. Stress can be triggered by many factors, such as changes in the environment, noise, being alone or conflicts with other animals or people.
  • Infections. Infections can weaken your dog and lower its defenses. The most common infections in dogs include parvovirosis, distemper, leptospirosis and Lyme disease. In addition to lethargy, these diseases can also cause fever, vomiting, diarrhea, coughing or skin rashes.
  • Pain. Pain can cause your dog to move less and sleep more. Pain can be caused by a variety of things, such as injury, arthritis, dental problems or tumors. If your dog is limping, howling, growling or touching himself, you should take him to the vet.
  • Poisoning. Poisoning can be a life-threatening situation for your dog. Many substances that are harmless to humans can be poisonous to dogs, such as chocolate, grapes, onions or medication. In addition to lethargy, poisoning can also cause vomiting, diarrhea, tremors or convulsions.

The authors assume that a veterinarian should be consulted if an animal is ill and that medication should only be taken after consultation with a doctor or pharmacist. Only an individual examination can lead to a diagnosis and treatment decision.

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