Dogs are our best friends. They love us no matter what. We need to take care of them so they stay happy and healthy, just like we take care of our best friends. Sometimes they get sick too! When your dog is sick, you'll see different symptoms than when they are healthy. In this article, we will discuss how to tell if your dog is sick by exploring seven common symptoms that dogs reveal when they are sick. We will also explore the implications of these symptoms for dog owners.

1. Lethargy

Lethargy is a common symptom of illness in dogs. If your dog is normally lively and playful but suddenly seems drained of energy, it may be a sign that something is wrong. Of course, there are many possible causes of lethargy, from simple overexertion to more serious health problems. If your dog is lethargic, it is important to pay attention to other symptoms and how long the lethargy has been going on. If your dog has only been lethargic for a day or two and there are no other changes, it might just be tired from playing too hard. However, if the lethargy has been going on for longer or is accompanied by other symptoms like loss of appetite, vomiting, or diarrhea, it could be a sign of something more serious and you should take your dog to the vet.

2. Loss of appetite

It's always a worry when your dog suddenly loses its appetite. After all, food is one of the joys of life for most dogs! However, there are a few different reasons why your pup might not be interested in eating. Here are some things to look for:

If your dog has suddenly stopped eating, check to see if there are any other changes in its behaviour. Is it drinking less water? lethargic? In pain? If so, these could be signs that your pet is sick and you should take them to the vet right away.

There could also be something wrong with the food itself. Maybe you've switched to a new brand of dog food that your pet doesn't like, or there could be something wrong with the food itself. If you think this might be the case, try offering your dog a different type of food to see if that helps.

3. Weight loss

One of the first signs that something may be wrong with your dog is a sudden change in weight. This could mean that your dog is either losing or gaining weight at an unusual rate. If you notice that your dog's waistline is starting to shrink, or that their ribs and spine are becoming more pronounced, it's important to visit the vet to rule out any underlying health problems. On the other hand, if your dog starts to pack on the pounds, it could be a sign of thyroid problems or simply overeating. Regardless of the cause, it's important to monitor your dog's weight and talk to your vet if you notice any changes.

4. Increased thirst and urination

Another sign that your dog may be sick is increased thirst and urination. If your dog is drinking more water than usual and urinating more frequently, it could be a sign that something is wrong. There are several possible explanations for this change in behaviour, including kidney disease, diabetes, and Cushing's disease. If your dog is showing other signs of illness, such as weight loss or lethargy, it's important to take them to the vet for a check-up. With early diagnosis and treatment, many health problems can be successfully managed. So if your furry friend seems unwell, don't hesitate to give your vet a call.

5. Lack of social interaction

Many dog owners consider their pet to be a member of the family, and as such, they want to make sure their furry friend is always happy and healthy. One way to tell if your dog is sick is by observing their social interaction. If your dog is usually outgoing and enjoys playing with other dogs, but suddenly becomes lethargic and withdrawn, this could be a sign that something is wrong. Additionally, if your dog is normally friendly towards people but starts growling or biting, this could also be an indication of illness. If you notice any changes in your dog's social interaction, it's important to take them to the vet so they can get the care they need.

6. Vomiting

Vomiting is one of the most common symptoms of illness in dogs. While it can sometimes be caused by something as simple as eating too fast, it can also be a sign of a more serious condition. If your dog is vomiting, there are a few things you can look for to help determine the cause. First, check the vomit itself. If it is clear or yellow, it is likely just a case of an upset stomach. However, if the vomit is green or brown, it may be a sign of internal bleeding. Second, pay attention to how often your dog is vomiting. A few sporadic episodes are usually nothing to worry about, but if your dog is vomiting multiple times a day, it's time to see the vet. Finally, observe your dog's behaviour. If they seem to be in pain or are lethargic, this is a sign that something more serious may be going on.

7. Poor hair coat

A dog's coat can be one of the best indicators of its overall health. A thick, lustrous coat is a sign of a healthy dog, while a dull, dry coat can be a sign of illness. If you notice that your dog's coat is looking lacklustre, it may be time to take them to the vet. There are several possible causes of poor hair coats, including allergies, dehydration, and nutrition deficiencies. Your veterinarian will be able to determine the cause of your dog's poor coat and recommend the best course of treatment. In the meantime, there are some things you can do at home to help improve your dog's coat. Be sure to brush your dog regularly to remove any dead or loose hair. You can also try using a conditioner or moisturizing spray to help keep their coat looking shiny and healthy.


If you notice any changes in your dog's behaviour, it's important to take them to the vet so they can get the care they need. Some of the most common signs of illness in dogs include weight loss, lethargy, changes in social interaction, and a poor hair coat. So if your furry friend seems unwell, don't hesitate to give your veterinarian a call. With early diagnosis and treatment, many health problems can be successfully managed.