Skip to Main Content
Ask About Financing

Dog Behavior Change After Vaccination

Dog Behavior Change After Vaccination

Once your pet gets their shots, you might notice some changes in how they act. Our vets from Ypsilanti discuss what to expect when it comes to dog behavior after vaccinations and address common concerns of pet owners.

Vaccinations & Your Dog's Health

As a responsible pet owner, make sure your dog gets their vaccinations. Vaccines are crucial for keeping your furry friend healthy by preventing serious diseases.  

Vaccinations play a vital role in your pet's yearly preventive healthcare strategy, safeguarding your dog's well-being by preventing potentially fatal diseases. Although there have been occasional concerns about vaccine safety over time, our team of skilled veterinarians strongly affirms that the advantages of vaccines in preserving the long-term health of the majority of dogs outweigh any potential risks.

After vaccinations, your dog's behavior might change. Here are some reasons why this can happen and what to expect. 

Common Behavior Changes After Vaccinations

After getting their shots, dogs might show some changes in their behavior. These changes are usually temporary and can vary from one dog to another. Here are a few common changes that pet owners might notice:

  • Decreased Appetite - sometimes, after shots, dogs might not feel like eating for a little while. It's usually nothing to worry about. Just make sure they have water and keep an eye on their eating habits. If they don't eat much for more than a day or two, talking to your vet is a good idea. 
  • Mild Discomfort - In some cases, dogs may experience mild discomfort or soreness at the injection site. They might exhibit signs of sensitivity when touched or may avoid putting weight on the affected leg, especially if the vaccine was administered in the leg region. This discomfort usually subsides within a few days.
  • Lethargy - Some dogs may experience lethargy or fatigue after vaccinations. This is a natural response as the body diverts energy to build an immune response. Allowing your dog time to rest and recover is crucial during this period.

Factors Influencing Behavioral Changes

Your dog's behavior can change after getting vaccinated. There are a few things to keep in mind:

  • Vaccine Components - Vaccines contain specific components, such as adjuvants or preservatives, to enhance their effectiveness and shelf life. In rare cases, dogs may exhibit allergic reactions to these components, leading to more pronounced behavioral changes. Discuss any concerns with your veterinarian to ensure the right vaccines are administered.
  • Stress and Anxiety - Veterinary visits, including vaccinations, can induce stress and anxiety in dogs. The anticipation of discomfort, strange environments, or unfamiliar people can trigger temporary changes in behavior. Comforting your dog with gentle reassurance and positive reinforcement can help alleviate stress during these visits.
  • Individual Sensitivity - Some dogs might change a lot after getting vaccines, while others won't change at all. It's normal for dogs to react differently. 

When to Seek Veterinary Advice

While most behavioral changes after vaccinations are normal and resolve within a few days, some situations may require veterinary attention. Contact your veterinarian if you notice any of the following:

  • Allergic Reactions - If your dog exhibits signs of an allergic reaction, such as excessive swelling, difficulty breathing, or vomiting, seek immediate veterinary care. Allergic reactions are rare but can be serious.
  • Uncharacteristic Behavior - If your dog displays unusual behavior unrelated to the common changes mentioned earlier, it is advisable to consult a veterinarian. They can help determine if the behavior is vaccine-related or stems from another health concern. 
  • Severe or Prolonged Behavior Changes - If your dog's behavior changes are severe, persist for an extended period, or worsen over time, consult your veterinarian. These changes could indicate an adverse reaction or an unrelated underlying issue.

Are Vaccines Right For Your Dog?

Dogs can sometimes act differently after getting shots, but it's usually not a big deal. To keep your furry friend feeling good, understand why shots are important, watch for any behavior changes, and ensure they're healthy. 

If you have concerns about the safety of dog vaccinations, it is advisable to consult your veterinarian. They can evaluate your dog's general health, lifestyle, and risk factors, helping you make an informed decision about whether vaccinations are appropriate for your dog.

Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.

Want to learn more about the benefits of having your dog vaccinated? Contact our Ypsilanti vets today to book an appointment for your pet.

Caring for Pets in Ypsilanti

Michigan Avenue Animal Hospital is accepting new patients! Get in touch today to book your pet's first appointment.

Contact Us

Book Online (734) 482-8171