How Do I Know If My Dog Is Sick?
- Dr Mandy Lugsdin
- Jul 19
- 4 min read
As a loving pet owner, nothing can be more concerning than noticing that something isn't quite right with your furry friend. Dogs can’t tell us when they're feeling unwell, so it's essential for pet owners to be observant and knowledgeable about the signs of illness in dogs. In this blog, we will explore how to recognize symptoms of sickness, when to seek veterinary care, and tips for monitoring your dog’s health.

Common Symptoms of Illness in Dogs
Understanding the common signs that your dog may be sick is the first step in ensuring their health and well-being. Here are some symptoms to keep an eye on:
1. Change in Appetite
One of the most noticeable signs that your dog may not be feeling well is a sudden change in appetite. Dogs may lose interest in food or might eat less than usual. Conversely, some dogs may begin to eat more than normal. Any significant change can indicate underlying health issues.
2. Lethargy
Dogs are usually playful and energetic. If you notice your dog is unusually tired, doesn’t want to play, or seems to sleep more than usual, it could be a sign of sickness. Lethargy can be caused by various conditions and should be addressed promptly.
3. Vomiting and Diarrhoea
Occasional vomiting or diarrhoea might not be a cause for concern. However, if it becomes persistent, it can lead to dehydration and requires immediate veterinary attention. Keep an eye on the frequency and consistency of your dog’s stool for any irregularities.

Changes in Behavior
Behavioral changes can be just as telling as physical symptoms. Pay attention to how your dog interacts with you and its environment:
4. Excessive Barking or Whining
A usually quiet dog that starts to bark or whine excessively may be trying to tell you something is wrong. These vocalizations can be a sign of anxiety, pain, or discomfort. Observe what triggers the barking to identify any patterns.
5. Changes in Drinking Habits
Dogs can become dehydrated quickly if they’re not drinking enough water. Conversely, increased thirst can also signal potential health issues like diabetes or kidney disease. Monitor your dog’s water intake and report any unusual changes to your veterinarian.
6. Difficulty Breathing
If your dog seems to be struggling to breathe or is breathing heavily, it could be a serious condition. Pay attention to any coughing, wheezing, or changes in the sound of their breathing. Quick action is necessary if you notice these signs.

When to Seek Veterinary Care
Knowing when to see a veterinarian can be challenging. As a general rule, if your dog is showing multiple symptoms or if any symptom persists for more than 24 hours, it's time to seek professional advice. Here are a few specific situations that warrant an immediate trip to the vet:
7. Signs of Pain
If your dog is limping, whining when touched, or exhibiting defensive behavior that suggests pain, don’t hesitate to consult your vet. Pain can often indicate serious injuries, and timely intervention can prevent worsening conditions.
8. Sudden Behavioral Changes
If your usually affectionate dog starts hiding or exhibiting aggressive behavior, it could indicate pain or fear. Changes in behavior are often one of the significant indicators of illness that should not be overlooked.
Tips for Monitoring Your Dog's Health
Keeping your eye on your dog’s health can help catch issues before they escalate. Here are some tips for effective monitoring:
9. Regular Vet Check-ups
Aim for routine veterinary visits, at least once a year or every six months for older dogs. Regular check-ups can help catch illnesses early and ensure vaccinations are up to date.
10. Maintain a Health Diary
Keeping a health diary for your dog can help you track any changes over time, including weight, eating habits, exercise levels, and behavior. This information can be invaluable for your vet when assessing your dog's health.
11. Watch for Weight Changes
A sudden change in weight—either gain or loss—can be a red flag. Make it a habit to check your dog’s weight regularly and consult your vet if there are significant fluctuations.
12. Conduct Regular Physical Checks
Make it part of your routine to check your dog’s ears, eyes, teeth, and skin. Look for any unusual bumps, redness, discharge, or foul odors. Brushing your dog also provides an excellent opportunity to notice about their physical condition.
Building a Healthy Routine
Creating a healthy lifestyle for your dog goes a long way in preventing illnesses. Here are a few lifestyle choices that encourage wellness:
13. Proper Nutrition
Providing a balanced diet is crucial for your dog's health. Consult with your veterinarian to ensure your dog receives the right nutrients based on their age, breed, and activity level.
14. Regular Exercise
Ensuring your dog stays active is essential for maintaining their health. Regular walks, playtime, and social interaction not only keep your dog fit but can also improve their mood and behavior.
15. Mental Stimulation
Keeping your dog mentally stimulated with toys, puzzles, and training exercises can help keep their mind active, reducing the chances of behavioral issues stemming from boredom.
Final Thoughts
Being a pet owner comes with the responsibility of ensuring your furry friend remains healthy and happy. By understanding the symptoms of illness, knowing when to seek help, and maintaining a proactive approach to your dog’s health, you can provide the best care possible. Always remember, when in doubt, consult your veterinarian for guidance.
Monitoring your dog’s health is a labour of love, forming an integral part of your bond with them. Please take good care of your dog, as they depend on you, and regular check-ins can help ensure they live a long, healthy, and happy life.
Comments