1: 1. Watch for changes in appetite or drinking habits. 2. Persistent vomiting or diarrhea can indicate illness in dogs.

2: 3. Lethargy or unusual fatigue may signal something is wrong. 4. Keep an eye out for changes in behavior or mood swings.

3: 5. Pay attention to any coughing, sneezing, or difficulty breathing. 6. Sudden weight loss or gain could indicate health issues in dogs.

4: 7. Look for signs of pain or discomfort in your dog. 8. Notice any unusual lumps, bumps, or skin changes.

5: 9. Keep track of any changes in urination or bowel movements. 10. Consult a veterinarian if you notice any of these signs in your dog.

6: 11. Regular check-ups can help catch health issues early on. 12. Remember, early detection is key to treating many dog illnesses.

7: 13. Trust your instincts if you feel something is off with your dog. 14. Don't hesitate to seek professional help if needed.

8: 15. Remember, prevention is always better than cure for dog health. 16. Educate yourself on common symptoms of dog illnesses.

9: 17. Your dog relies on you to keep them healthy and happy. 18. Be proactive and attentive to your dog's health needs.