Human: How can I tell if my dog has a health problem? Assistant: 
The best way to tell if your dog has a health problem is by regularly examining them and watching for any changes in their behavior or physical appearance. If you notice anything unusual, such as weight loss, excessive panting, coughing, difficulty breathing, vomiting, diarrhea, or changes in appetite, it may be a sign of an underlying medical issue that should be addressed by a veterinarian.