1. **Kennel Cough**: This highly contagious respiratory disease often presents with a persistent cough, gagging, nasal discharge, and lethargy. Dogs may also lose their appetite.
2. **Parvovirus**: Symptoms include severe vomiting, diarrhea (often bloody), lethargy, and loss of appetite. Parvovirus is particularly dangerous for puppies and can be fatal without prompt treatment.
3. **Canine Distemper**: This viral disease starts with symptoms similar to a cold, such as coughing, sneezing, and discharge from the eyes and nose. As it progresses, it can cause fever, vomiting, diarrhea, and neurological issues like seizures.
4. **Lyme Disease**: Caused by tick bites, symptoms include fever, loss of appetite, swollen joints, and lethargy. You may also notice your dog limping or showing signs of pain.
5. **Heartworm Disease**: Early signs are often subtle, including a mild cough, fatigue, and decreased appetite. As the disease progresses, dogs may develop more severe symptoms like weight loss and difficulty breathing.
6. **Diabetes**: Symptoms include excessive thirst and urination, increased appetite, and weight loss despite eating normally. Some dogs may also have cloudy eyes or lethargy.
If you notice any of these signs, it's important to consult your veterinarian for a proper diagnosis and treatment plan. Regular check-ups and vaccinations can help prevent many of these diseases.
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