How to Tell if a Dog Is Sick 10 Common Symptoms
Dog Is Sick 10 Common Symptoms. Dogs might not be able to tell us in words when they’re not feeling well, but they often show it with their behavior. Even subtle changes can indicate something’s wrong. Learning how to tell if a dog is sick can help you catch problems early.

Dog Is Sick 10 Common Symptoms
Recognizing these signs early can make all the difference in their well-being. Here are the key symptoms that determine if your dog is sick and might need medical attention. Understanding how to tell if a dog is sick ensures timely care.
1. Changes in Appetite
A sudden change in your dog’s appetite, whether they’re eating too little, too much, or not eating at all can be a sign something is not right. Knowing how to tell if a dog is sick includes noticing these eating habit changes.
Changes in your dog’s appetite can be caused by:
- Dental disease or oral pain can make chewing a challenge for dogs
- Stomach upsets – perhaps from sneaking table scraps or a sudden diet change – can cause them to eat less
- Intestinal parasites
- Conditions like pancreatitis can also impact their eating habits
- Behavioral reasons like being bored with their current food or might’ve developed an aversion to it
- Underlying illnesses like kidney or liver disease could reduce their food intake.
However, when you notice an increased appetite, it could be due to conditions like canine diabetes or thyroid issues. Understanding how to tell if a dog is sick helps you identify if these appetite changes are a cause for concern.
Depending on the root cause, treatments might range from dental cleanings and dietary adjustments to medications targeting the specific issue.
2. Changes in Drinking Habits
It’s not uncommon to spot changes in your dog’s drinking habits. Simple factors, like a warmer climate or increased physical activity, can make them thirstier. Yet, knowing how to tell if a dog is sick means watching for persistent or unusual drinking changes.
Sometimes these changes can be attributed to shifts in their diet. For instance, switching from dry kibble to wet food might reduce their water intake, since wet food contains more moisture. A change in the water source, perhaps a new taste or even the bowl’s location, can also play a part.
However, persistent changes can hint at health concerns. Increased thirst can be a sign of conditions like diabetes, kidney issues, or hormonal imbalances. Conversely, reduced water intake could suggest nausea or dental discomfort.
Treatments for these changes can range from dietary adjustments and medications to manage conditions like diabetes or kidney issues to dental cleanings for oral discomfort. Sometimes simple modifications like altering the water source or food type might do the trick.
Pets Best Insurance Policy for Your Pets As a pet owner, you know how expensive vet care can be. Protecting your pets with the right pet insurance is a big help. With so many choices, finding the best policy can feel tough.
3. Changes in Behavior
Dogs can display distress or discomfort through notable behavioral shifts. Physical discomfort from undetected injuries or conditions like arthritis might make them more irritable or withdrawn. Understanding how to tell if a dog is sick means paying attention to these subtle behavior changes.
Emotional triggers, such as changes in their environment or the addition of a new pet, can also disrupt their typical behavior. Additionally, aging dogs may show signs of cognitive decline, affecting their daily routines and reactions.
If your dog starts acting differently, it’s important to understand why. Paying attention to these behavior changes can make all the difference in their overall health and happiness. The first step in how to tell if a dog is sick is determining whether it’s due to a health issue or environmental changes, often with the help of a licensed vet.
Potential solutions include medication, behavioral training, or making modifications based on their age.
4. Hair Loss and Itchy Skin
When your dog constantly scratches, licks, or even starts to lose hair in patches, it’s a clear sign something’s bothering their skin. Knowing how to tell if a dog is sick involves noticing these skin-related symptoms.
Allergies in dogs are common, whether from food, environmental factors, or reactions to certain products like shampoos. External parasites, such as fleas, ticks, or mites, can also drive your dog to itchiness and discomfort.
More concerning skin issues might arise from bacterial and fungal infections or autoimmune diseases that manifest as skin problems.
Scratching all the time isn’t just uncomfortable for your dog; it can lead to open sores or secondary infections. Seeing bald patches or red inflamed areas on your furry buddy can be quite worrisome. Treatments might include antiparasitic medications, allergy medications, special shampoos, or dietary changes.
Schedule an in-home allergy exam for your dog.
5. Trouble Walking or Limping
Difficulty walking or limping can be a telltale sign that your dog isn’t feeling their best. Often, this is an indication of pain or discomfort in their legs, paws, or joints. Understanding how to tell if a dog is sick includes observing any mobility issues.
Causes can be numerous, from simple reasons like stepping on something sharp or minor sprains to more severe issues such as arthritis, hip dysplasia, or even bone diseases.
It’s not just the physical discomfort that affects them. A dog that’s used to running around but suddenly finds it painful can become frustrated or depressed. They might even withdraw from their favorite activities or become reluctant to go for walks.
The treatment approach depends on the diagnosis. For minor sprains, rest and limiting physical activity might be recommended. In cases of chronic issues like arthritis, medications to reduce inflammation and pain, joint supplements, or physical therapy might be beneficial.
6. Coughing and Sneezing
It’s not unusual to hear your dog give an occasional sneeze or cough. But if it’s happening often, it’s worth paying attention. Recognizing how to tell if a dog is sick includes noticing frequent coughing or sneezing.
Simple reasons for coughing and sneezing in dogs include dusty environments, allergens, or the common cold. Canine flu or kennel cough could also be at play, along with heart disease and bronchitis.
Frequent coughing or sneezing isn’t just annoying for your dog; it can wear them out and make them less enthusiastic about their usual activities. They might need some rest, environmental tweaks, or medications to tackle the problem.
And always remember, sometimes the cause can be more serious, like heart-related issues, which means a vet’s evaluation is crucial.
7. Eye and Ear Issues
Your dog’s eyes and ears are sensitive, and it’s important to note any changes in their appearance or behavior. Identifying how to tell if a dog is sick means being aware of signs related to their eyes and ears.
Eye issues include redness, discharge, swelling, or frequent scratching. These can range from simple irritations or allergies to more serious conditions like cataracts or glaucoma.
Ear problems are common, especially in breeds with floppy ears or those who love to swim. Yeast infections, bacterial infections, or allergies can cause discomfort and symptoms.
Dogs facing eye or ear discomfort may become irritable, shy away from touch, or lose their usual playfulness. Untreated problems can even lead to loss of vision or hearing.
Treatments often involve cleaning, medicated drops or ointments, or specialized therapies and surgeries in severe cases.
8. Unexplained Weight Loss or Gain
If your dog’s weight fluctuates without clear reason, it’s important to note it. Recognizing how to tell if a dog is sick includes monitoring sudden weight loss or gain.
Sudden weight loss might result from metabolic disorders, poor nutrient absorption, or serious diseases like cancer. Weight gain, on the other hand, could be related to hormonal imbalances or internal issues.
Weight changes don’t just alter your dog’s appearance—they can affect energy levels, immunity, and overall health. Rapid weight loss can make them lethargic and vulnerable to infections, while weight gain stresses joints and organs.
Addressing these issues may require dietary changes, medications, or specific treatments.
9. Vomiting and Diarrhea
While an occasional upset stomach might cause your dog to vomit or have diarrhea, persistent or severe symptoms shouldn’t be ignored. Understanding how to tell if a dog is sick means paying attention to these digestive issues.
Many factors can lead to stomach problems, including ingestion of harmful substances, dietary changes, allergies, infections, parasites, pancreatitis, or kidney disease.
These symptoms can cause dehydration, weakness, and nutrient loss. Persistent or severe cases require prompt veterinary attention to avoid serious health risks.
Treatments for mild cases may include a bland diet and plenty of water. However, if symptoms worsen or are accompanied by lethargy or blood in vomit or stool, immediate veterinary care is essential.
10. Difficulty with Urinating and Bowel Movements
Difficulty urinating or having bowel movements is a serious concern. Recognizing how to tell if a dog is sick involves noting changes such as straining, altered urine volume, or accidents in house-trained dogs.
Problems can range from gastrointestinal blockages and constipation to tumors. Excessive urination might indicate kidney problems or diabetes mellitus, while bloody urine can signal infections, bladder stones, or cancer.
These conditions affect dogs of all ages but are more common in seniors. Treatment options include dietary adjustments, medications, or surgery, depending on the cause.
What to Do If You Notice These Symptoms
When you notice changes in your furry friend, do not ignore them. Recognizing how to tell if a dog is sick means tracking symptoms and their frequency.
Documenting persistent or unusual behaviors can help your veterinarian diagnose the issue. While some symptoms require immediate attention, many warrant observation to identify patterns.
Don’t wait too long to consult a vet if symptoms persist or worsen. They will conduct tests and recommend treatments tailored to your dog’s needs.
Conclusion
Spotting changes in your dog’s health early can greatly improve their quality of life. Being proactive and attentive ensures your pet remains happy and healthy.
If you notice any of the symptoms mentioned or it’s time for a checkup, schedule a vet visit to keep your furry friend in tip-top shape.
Symptom | Possible Causes | Recommended Actions / Treatment |
---|---|---|
Changes in Appetite | Dental disease, stomach upset, parasites, pancreatitis, behavioral issues, kidney or liver disease | Dental care, diet changes, medications, veterinary diagnosis |
Changes in Drinking Habits | Diet change, environmental factors, diabetes, kidney problems | Diet adjustments, hydration management, medications |
Behavioral Changes | Pain, injuries, arthritis, environmental stress, cognitive decline | Veterinary consultation, medication, behavioral training |
Hair Loss and Itchy Skin | Allergies, parasites, infections, autoimmune diseases | Allergy tests, antiparasitic meds, medicated shampoos |
Trouble Walking or Limping | Injuries, arthritis, hip dysplasia, bone disease | Rest, pain relief, physical therapy, joint supplements |
Coughing and Sneezing | Allergens, kennel cough, heart disease, bronchitis | Rest, environmental changes, medications, vet evaluation |
Eye and Ear Issues | Infections, allergies, irritations, cataracts, glaucoma | Cleaning, medicated drops, surgery if needed |
Unexplained Weight Loss or Gain | Metabolic disorders, cancer, hormonal imbalances | Diet management, medications, veterinary care |
Vomiting and Diarrhea | Diet changes, infections, allergies, pancreatitis | Bland diet, hydration, medications, vet treatment |
Difficulty with Urinating and Bowel Movements | Urinary tract infection, constipation, tumors, kidney issues | Diet changes, medications, surgery if severe |