Get

In Your Inbox

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

Overbreeding in Dogs: Consequences, Risks & Health Issues

Cretan Hound

As you may know, many dog breeders are reputable, act responsibly, and care about the health and welfare of their pups. Unfortunately, there are also people who irresponsibly breed dogs, particularly in places like puppy mills. They are known for overbreeding dogs for profit without concern about the consequences, risks, and health issues for the mothers or their litters.

The effects of overbreeding are similar, whether done in a backyard breeding situation with one or two dogs or in puppy mills where many dogs are being bred on a larger scale for profit.

What Is Overbreeding?

According to the American Kennel Club’s (AKC) guide to responsible breeding, it is “customary to avoid breeding a bitch on consecutive heats to allow sufficient time for recuperation between pregnancies.” The guide also states, “The AKC rules do not allow, except with special documentation, the registration of a litter out of a dam less than 8 months of age or more than 12 years of age at the time of mating, or by a sire less than 7 months of age or more than 12 years of age at the time of mating.”

Overbreeding is a harmful practice. Dogs are bred more often than they should without any concerns for the mother’s health or the welfare of the litter of pups. Overbreeding also contributes to the overpopulation of dogs and the euthanasia of sickly or unwanted pups every year.

Overbreeding can involve:
  • Female dogs being mated and having litters more often than their body can safely manage.
  • The practice of breeding dogs in large numbers with little regard for the health and well-being of the animals involved.
dachshund with newborn puppies, dachshund lactating
Image By: Shift Drive, Shutterstock

Dogster_Website dividers_v1_Jan 18 2026-03 What Are the Consequences of Overbreeding?

Overbreeding poses serious health and welfare risks both to the mothers and their puppies. It also contributes to the large numbers of unwanted dogs and overcrowded shelters and rescues. Sadly, many of these dogs are euthanized every year.

Due to the large number of puppies being born in puppy mills, overbreeding can also reduce the likelihood of animals from rescue groups, shelters, and reputable breeders being placed in loving homes.

1. Welfare Concerns

Puppy mills, where overbreeding is most common, are notorious for their poor conditions. Dogs are usually kept in small and unsanitary enclosures with little to no veterinary care.

Female dogs are bred repeatedly with no rest between litters. When they are no longer able to reproduce, they are often discarded or euthanized.

Puppies are not socialized and bred for their physical traits rather than temperament. As a result, they frequently suffer from behavioral issues later on in life.


2. Genetic Defects and Inherited Disorders

When dogs are overbred, appearance or specific traits are typically prioritized over health and genetic diversity. Dogs may be inbred (mated with closely related dogs) to maintain these traits, which can also increase the prevalence of genetic disorders.


3. Putting Profit First

Overbreeding does the opposite of responsibly breeding to improve. They do not think about the welfare of the animals. They rush to make more money, so they spend less and breed more.

sad-looking puppy closeup
Image By: Bharathi Kannan, Unsplash

dogster paw dividerHealth Concerns of Overbreeding in Dogs

Overbreeding generally results in multiple litters being born in cramped conditions, often without any form of veterinary care. This poses hygiene risks and increases the spread of infectious diseases. For example, viruses like parvovirus and parasites like hookworms can rapidly spread among the puppies.

The mothers can also be affected by malnutrition, hypocalcemia (low calcium levels, which can be life-threatening), uterine infections, and mastitis.

When dogs are overbred, the parents rarely have any genetic or health testing before breeding. This increases the risks of genetic and inherited issues in the puppies.

Health issues that can be more common due to overbreeding include:
  • Orthopedic issues such as hip dysplasia
  • Hearing loss and eye problems
  • Difficulties during birth
  • Respiratory issues like the ones common in flat-faced breeds

dogster paw divider

Frequently Asked Questions (FAQs)

What Are Some Red Flags You Should Be Aware of?

  • The breeder avoids or refuses to show you the entire property where the dogs are kept and bred.
  • The breeder is not questioning the potential buyer.
  • The person selling the dogs has several types of designer crossbreeds or purebred pups being sold.
  • If the seller does not offer you a puppy contract or health guarantee, buyer beware.

What Should You Look for in a Breeder?

  • A responsible breeder will explain and provide a potential buyer with vet information, medical history, and vaccine records.
  • A responsible breeder does not have multiple puppies available for sale at all times. In most cases, they have waiting lists and will have potential owners for puppies before the dog is even bred.
  • They want to introduce you to the mom and dad dogs and are willing to show you where the pups sleep and play.
  • They will inquire about why you want a dog, your plans for training and care, and your home and lifestyle.

What Are Some Steps I Can Take to Help Stop Overbreeding?

  • Adopt a pet: Many dogs at your local shelter or rescue need a loving home.
  • Donate: Donate pet supplies or give monetary contributions to your local shelter to help support animals waiting for a loving home.
  • Support responsible breeders: If you choose to get a puppy from a breeder, research them thoroughly and make sure they are reputable.
  • Support Laws: Become educated on your state’s laws regarding responsible dog breeding, spread awareness, and support legislation that regulates breeders.

Dogster_Website dividers_v1_Jan 18 2024-03

Summary

Overbreeding is hazardous to the mother and puppies. It can put the mother at risk for life-threatening illnesses, subject the dogs to unhealthy conditions, and to future health problems. You can do your part to prevent overbreeding by adopting from your local shelter, donating to needy pets, and researching and supporting reputable and responsible breeders who care about the health and welfare of their dogs.


Featured Image By Peter Maerky, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

2 Responses

  1. Hello,
    I have a question. MY husband and I just adopted a three-year-old pit-bull boxer mix. We were so excited to meet her and felt like we three already knew each other. The bond was immediate. She is even tempered, happy and loving. What little anxiety Bailey had dissipated when we go home. She seems to be comfortable inside as well as in the yard.
    When we were at the humane society, we were given some history and all the standard paperwork. But, we didn't ask enough questions. We had been told that she had been at another partner center and was on the kill list for the day that she was transferred to this no kill center after the staff requested her. She was found to have heart worms and was treated successfully. She has been up for adoption for "a while".
    We have noticed that her teats hang low. She also snorts when she eats. She snores intermittently when she sleeps. My question is do we need to worry about future health problems? Another question: will her nipples decrease in size after having been neutered? Thank you!

    1. Hi Joan, thanks for getting in touch. Congratulations on adopting Bailey! It sounds like you've already formed a wonderful bond.
      Regarding her snoring, it could be related to her anatomy, and therefore her breed, but it would be best for a veterinarian to examine her. They can determine if she has any airway obstruction and assess its severity.

      As for her nipples, it’s difficult to say without seeing her, but the appearance of her teats and nipples could be due to previous pregnancies and lactation, it’s unlikely they will shrink significantly. Again, this would depend on how long ago she was pregnant or weaned her puppies, so a vet consultation would provide more clarity. 🙂

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How to Help Your Dog Avoid Dry, Itchy Skin in the Winter: 10 Vet-Verified Tips

If your dog has a skin condition, you’re not alone. According to Nationwide Pet Insurance, these issues are three of the top 10...

Do Vets Get Sad When They Have to Put Down a Dog? Vet-Reviewed Facts & Info

Perhaps you dreamed of becoming a veterinarian when you were a child. It all sounded good, minus the long and grueling schooling. But...

How to Read a Dog Food Label: 8 Vet-Approved Tips

We always want the absolute best for our pets, whether it be the most fun new toys or the coziest beds. Nutrition is...

Dalmatian Schnauzer Mix Breed: Info, Pictures, Care & More

When it comes to mixed breeds, some very unlikely crossings, such as the Dalmatian-Schnauzer mix, sometimes occur. In this guide, we’ll explain the...

More related

How to Fatten Up a Dog: 6 Steps to Gain Weight Safely (Vet Answer)

It’s easy to fall into the trap of overfeeding your dog, and a majority of a general practice veterinarian’s day includes coaching owners...

Sarabi Dog: Info, Pictures, Temperament & More

The Sarabi is a giant livestock guardian dog. Weighing up to 200 pounds, they are quite a sight to see. With such a...

American Pit Bull Terrier Dog Breed: Info, Pictures, Care, Traits & More

The American Pit Bull Terrier is a short-haired, medium-sized dog that is exceptionally stocky. They are also very friendly—in most cases. However, they...

11 Vet-Verified Reasons to Get a Dog: Why They Are the Best Pets

While any avid owner can gladly expound on the meaning their pets bring into their lives, would-be pet parents can’t always see the...

Keep reading

8 Best Just Food For Dogs Alternatives in 2026: Reviews & Top Picks (Vet-Reviewed)

Fresh dog food delivery services have crashed into the pet industry like a tidal wave, and with good reason. If you are a pet owner, odds are that you have contemplated feeding your beloved pets these human-grade foods; perhaps you...

Dog eating Nom Nom Fresh Dog Food

Raw Dog Food Diet Plan: Vet-Approved Guide to Get Started

Raw food diets for dogs are surrounded by controversy, but they’re becoming more popular among dog owners. These diets aren’t new. Racing Greyhounds and sled dogs have been eating raw diets for decades, and an Australian veterinarian, Ian Billinghurst, proposed...

Husky wolf dog excited to be fed with raw food

Can Dogs Eat Raw Salmon? Vet-Verified Nutrition Facts & Advice

Salmon is packed full of healthy nutrients and is considered by some to be one of the healthiest protein sources since it provides essential vitamins and is a great source of omega-3 fatty acids. But what about raw salmon? Is...

Can Dogs Eat_salmon

Can Dogs Eat Biscuits? Vet-Approved Facts & Safety Tips

Whether begging to share our dinner or rummaging through the trash, dogs love to eat human food. Unfortunately, not all people food is safe for dogs, so it’s important to know what they can and can’t eat. If you’re wondering...

Can Dogs Eat_biscuits

How Much Should a Dachshund Eat in a Day? Adult & Puppy Feeding Guide

Like every dog breed, the Dachshund requires proper nutrition to grow healthy and strong and to stay that way throughout their life. Poor nutrition could lead to serious health problems, lower quality of life, and even a shorter lifespan. Fortunately,...

Black Dachshund dog guarding and eating food

10 Best Foods for Dogs With Arthritis in 2026 – Reviews & Top Picks

Arthritis and mobility problems in our canine companions are a huge part of the pet industry. One look online and the average person will be overwhelmed with supplements, treats, foods and products all claiming to be “the best” for your...

Beagle Eating Dog Feeding

Best Calming Treats for Dogs in 2026 – Reviews & Top Picks

It’s never been a better time to be a dog. The humanization of the pet industry has brought a wealth of new toys, foods, and treats. Research has been done to understand our canine companions better and develop new products...

Owner giving treats as reward for training dog

7 Best Nom Nom Dog Food Alternatives in 2026: Reviews & Top Picks

Nom Nom is a dog food subscription service. You sign up, choose your dog food and delivery rate, and you can have dog food delivered to your door. It provides the benefits of feeding a freshly made diet, combined with...

dog eating wet food