Why Is My Dog Lethargic And Drinking A Lot Of Water?

Lethargic conditions in dogs appear due to many disorders. In fact, loss of appetite, no water drinking and lethargy are general signs of illness in dogs and many diseases and conditions can cause lethargic symptoms. Most common causes of lethargy in dogs are

   1. Cancer
   2. Skin and eye diseases
   3. Toxic reactions
   4. Side effects of medicines
   5. Immune diseases
   6. Anemia
   7. Electrolyte imbalance
   8. Cardiovascular disorders
   9. Infections
  10. Hormonal disorders

So, take your dog to identify cause of lethargy in your dog if symptoms continue for more than 24 hours.