Dogster is reader-supported. When you buy via links on our site, we may earn a commission at no cost to you. Learn more.

Dog Training

Pandemic Dogs & Puppies: Vet-Reviewed Behavioral Issues

Rachel Giordano
By Rachel Giordano · Reviewed & fact-checked by Dr. Amanda CharlesVet Approved
Dr. Amanda Charles
Reviewed & Fact-Checked byDr. Amanda CharlesBVSc MRCVS (Veterinarian)
Dr. Amanda Charles, a 2002 graduate from Liverpool University, has built a prolific career in small animal medicine. She is passionate about providing pet owners with reliable and current information, enjoying the varied aspects of veterinary work. Outside the clinic, Amanda's life is filled with the energy of her two young sons, her spirited Cocker Spaniel, along with a spunky Ragdoll cat.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Learn more
Updated on June 27, 2026
Share
small Jack Russell Terrier dog in window

The Covid-19 pandemic brought tons of uncertainty to our lives. From lockdowns to new vaccines being developed quickly, the uncertainty caused great stress to many. However, while stuck at home, many people adopted puppies and dogs to help deal with boredom and for companionship. But was this a good idea? How did it affect dogs’ and puppies’ socialization and behavioral skills afterward?

Puppies and dogs certainly enjoyed the added time with their owners, but the lockdowns meant that there was a lack of socialization opportunities with both other people and dogs which has contributed to behavioral issues. Let’s explore this topic in depth.

dogster face divider

Pandemic Puppies and Dogs

If you’ve never heard the phrase “pandemic puppies,” you can guess what it means—pandemic puppies are puppies and dogs that were adopted during the Covid-19 pandemic lockdown. According to data from the American Society for the Prevention of Cruelty to Animals (ASPCA),1 23 million Americans adopted a dog or cat from the beginning of the pandemic to 2021, which equates to 1 in 5 households based on the 2019 U.S. Census.

According to Frontiers of Veterinary Science,2 global online searches for dogs and cats peaked between April and May 2020; however, dog adoption searches decreased in July 2020 and returned to average compared with 2019 stats.

Image Credit: dramitkarkare, Pixabay

Are Most Pandemic Dogs Still in Their Homes Today?

When researching this topic, we found conflicting information about whether dogs were returned to shelters once the lockdown was lifted. A survey conducted in May 2021 revealed that from March 2020 through May 2021,3 90% of dogs adopted during the pandemic remained in their homes, while 87% of adopted cats also remained in their adoptive homes, which were promising numbers but the data was collected while some of the pandemic related restrictions were still in place

At the end of 2023 the Shelter Animals Count,4 an organization that tracks unhoused pet populations, reported that the numbers of dogs taken in had continued to rise over the previous few years causing a post-pandemic shelter crisis. The numbers had increased by 2.5% from 2022 and by 14.2 % from 2021. It is thought that the number may have been higher if the shelters were not already overcrowded and had more space to keep animals.

Are Pandemic Puppies More Likely to Have Behavioral Problems?

Studies have shown that there was a variation in the experiences of different dog owners during the pandemic, which partly depended on the age and background of the dog, as well as the experience of the owners. Although the pandemic restrictions often led to an increase in the amount of time owners were able to spend training and playing with their pups, there was a lack of socialization opportunities with other people and dogs. There was also an increase in first-time dog owners and they were unable to attend in person puppy classes.

Early appropriate puppy socialization has been shown to reduce the incidence of behavioral problems in adult dogs. In their first few months of life, puppies have what is termed a ‘socialization window’ when it is important they have lots of positive experiences with different animals, people, and situations. This allows them to learn and understand what to expect and how to react later on in life, and results in a more flexible and resilient adult dog.

A UK study followed a cohort of over 1,000 puppies that were purchased in the pandemic and were under the age of 16 weeks. 97% of owners reported their dogs displayed at least one problem behavior but the average number of reported problems at 21 months was five. The most frequent behavioral issues were control behaviors (84%), attention-seeking (77%), fear/avoidance behaviors (41%) and aggressive behaviors (25%). In addition separation related behaviors were seen in one third of dogs and this was more likely in dogs with younger owners aged 25-34.

However, veterinary behaviorists presenting at a Florida Behavior Symposium in January 2023 did not report seeing a large increase in dogs with separation anxiety and stated that the behavioral issues arising from poor socialization were similar to pre pandemic levels. They suggested there is an ongoing lack of understanding about the importance of proper socialization.

Another study performed by Green Element, a CBD supply company, stated that there had been an increase in dogs’ anxiety from 2020 to 2022 in Finland. It also seems that dogs who were known to have issues pre-pandemic were the ones who were more likely to experience problems during the lockdowns.

Still, different households have experienced different outcomes, and further research is needed to fully understand the socialization and behavioral issues in pandemic puppies and dogs.

Image Credit: Ovchinnikova, Shutterstock
dogster paw divider

How to Socialize Your Pandemic Pup

If you adopted a dog during the pandemic and are now experiencing socialization or behavioral problems, it's important to seek help as soon as possible. Progress can always be made with training and a behavioral modification program but it takes time and patience. Understanding and working with the dog you have with the help of a trainer or behaviorist is advisable. While we talk about the vital socialization window it is important to remember that socialization doesn’t end there. It is a lifelong learning process. Here are some tips to help socialize an older dog:

  • Focus on your dog's issues, but don’t bombard them all at once. Work at your dog’s pace, starting slowly, and always use positive reinforcement and never punishment.
  • Never force or drag your dog into an uncomfortable situation, such as a dog park.
  • It’s best to set realistic expectations. Your dog may never be comfortable interacting with all other dogs,and may always be fearful of some new people for example, but situations can be managed if you are aware of what your dog struggles with. Never force your dog to be around other dogs or strangers if they’re uncomfortable, especially unsupervised.
  • Provide sufficient physical exercise. Mental stimulation such as games and puzzles, can also help relieve anxiety and stress.
  • Seek help and advice from a veterinary behaviorist if necessary to formulate a behavioral modification plan specific to your dog.
dogster face divider

Final Thoughts

Some surveys have shown an increase in problem behaviors in pandemic puppies partly due to a lack of adequate socialization during lockdowns, but different households have had different experiences of the pandemic.

Remember that training and socializing an adult dog takes time and patience, but it’s possible as long as you keep the expectations realistic and positive. We’d recommend enlisting the help of a certified canine behaviorist for advice specific to your pup.

Sources

Featured Image Credit: thka, Shutterstock

The Dogster Newsletter

Expert dog care, straight to your inbox

News, insights, expert advice, and everything dog.

No spam — unsubscribe anytime.

By signing up, you agree to our Terms & Conditions and Privacy & Cookies Policy.

Click a star to rate. You can leave written feedback afterwards. (We read all feedback.)

Rachel Giordano
Authored by

Rachel Giordano

Puppy Mill Dog Behavior Problems & Vet-Approved Solutions

Puppy Mill Dog Behavior Problems & Vet-Approved Solutions

Getting a puppy should be an enjoyable experience. Pets can bring so much joy that it seems counterintuitive to consider behavior problems and the possible rel…

Chris Dinesen Rogers
By Chris Dinesen Rogers · 1 month ago
Social Anxiety in Dogs: Vet-Reviewed Signs & Treatments

Social Anxiety in Dogs: Vet-Reviewed Signs & Treatments

Social anxiety can be crippling for humans, and things like going to work and facing social engagements seem nothing short of overwhelming. Unfortunately, our…

Rachael Gerkensmeyer
By Rachael Gerkensmeyer · 1 month ago
Do I Have an Anti-Social Dog? 8 Vet-Verified Signs to Look For

Do I Have an Anti-Social Dog? 8 Vet-Verified Signs to Look For

Owning a dog is a fun way to make new canine friends and meet other dog owners. Not all dogs are happy to take part in their owner’s social calendar, though, a…

Oliver Jones
By Oliver Jones · 1 month ago
How to Socialize an Adult Dog: 11 Vet-Verified Tips & Tricks

How to Socialize an Adult Dog: 11 Vet-Verified Tips & Tricks

Experts recommend socializing a dog when they are young. However, not all dogs are put in situations where they receive proper socialization when they are pupp…

Grant Piper
By Grant Piper · 1 month ago

10 Most Common Dog Behavior Problems & Vet-Approved Solutions

When dogs develop certain unsavory behaviors, it can be very challenging for their owners to navigate. Unfortunately, it can affect the entire dynamic of a hou…

Ashley Bates
By Ashley Bates · June 16, 2026
10 Most Common Dog Behavior Problems & Vet-Approved Solutions

Do You Have a Scared Puppy? 6 Vet-Approved Tips on How to Help Them

Coming into a new home and meeting new people is an extremely stressful situation for puppies, and every dog will react differently. But if your pup simply isn…

Adam Mann
By Adam Mann · June 16, 2026
Do You Have a Scared Puppy? 6 Vet-Approved Tips on How to Help Them

Separation Anxiety in Dogs: Vet-Approved Guide

Separation anxiety is very real for some dogs, and this disorder can leave them feeling extreme fear when they are left at home alone, even for short periods o…

Keri-Beth Clur
By Keri-Beth Clur · June 17, 2026
Separation Anxiety in Dogs: Vet-Approved Guide

How to Socialize a Puppy: 8 Vet-Approved Training Tips

Socialization is necessary for healthy growth and development in puppies. Puppies will learn a lot about their surroundings within their first 3 months of life…

Jessica Kim
By Jessica Kim · June 16, 2026
How to Socialize a Puppy: 8 Vet-Approved Training Tips

Why Is My Dog Afraid of Strangers? 4 Reasons & Training Tips

You want to expose your dog to different situations, but whenever they meet someone new, they’re anxious and cowering. It’s a common experience for many canine…

Adam Mann
By Adam Mann · July 4, 2026
Why Is My Dog Afraid of Strangers? 4 Reasons & Training Tips

Stress in Dogs: Vet-Reviewed Causes, Signs & How to Help

Like humans, dogs can get stressed out, which can lead to changes in behavior and other problems. If you think that your pet is suffering from anxiety, you’ll…

Ed Malaker
By Ed Malaker · June 17, 2026
Stress in Dogs: Vet-Reviewed Causes, Signs & How to Help

Dog Training in the City: Challenges & How to Overcome It (Vet Approved)

City streets are a far cry from a dog’s natural environment, presenting plenty of problems when trying to keep them comfortable and well-behaved. Urban areas a…

Nicole Cosgrove
By Nicole Cosgrove · June 16, 2026
Dog Training in the City: Challenges & How to Overcome It (Vet Approved)

The Right Way to Train a Skittish Dog, Approved by Vets

Training a skittish dog is one of the more humbling experiences in pet ownership. You try to comfort them, and they seem more anxious. You push them gently tow…

Dan Seymour
By Dan Seymour · June 16, 2026
The Right Way to Train a Skittish Dog, Approved by Vets

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.

You may opt-out at any time. View our Privacy Policy for more information.

The Dogster app on a phone