Skip to Content

Is It OK To Pick The Runt Of The Litter? Complete FAQ Guide

Is It OK To Pick The Runt Of The Litter? Complete FAQ Guide

You’ve made the exciting decision to get a new puppy! When you’re looking at the litter of puppies, you may notice one that is particularly smaller than the rest. This puppy is know as the runt of the litter. Often times they are much smaller and weaker than the rest of the puppies.

Many people ask is it ok to pick the runt of the litter, so we’ve created this complete runt of the litter guide, for you to know everything you need before making an important decision.

Let’s get into it!

What Is The Runt of The Litter?

This will be good to clear up first. Since this article is entirely about “runts” let’s make sure we both understand exactly what the “runt of the litter” really means.

Many people think of the runt as the cute one that’s just smaller than the rest.

Your breeder will think differently about this! By definition, a runt puppy will be one (or more) of the litter whos weight is abnormally low, below the healthy level for that specific breed. This is what’s considered the runt of the litter.

There can be many health issues that develop if the newborn puppy’s weight isn’t correct. That’s why it’s best to be well informed if you intend on picking the runt of the litter.

Why Are There Runts In a Litter?

It’s also good to understand how this actually happens. Shouldn’t all the puppies just be the same size? That’s a good question, but it’s not that simple.

Two common myths:

  • False. A common myth about runts of the litter is that they were conceived at a later stage than the rest of their litter friends, which means they would be born prematurely.
  • False. An even more commonly heard myth is that runts develop in the middle of the uterus and are further away from their mother’s bloodline, leaving them undernourished. Puppies inside the womb are constantly moving around and ultimately share an even amount of nourishment. (According to Dr. Kustritz Assistant Dean of Education, Department of Veterinary Clinical Sciences)

Reasons why we have runts of the litter:

  • Dr. Kustritz in her book The Dog Breeder’s Guide to Successful Breeding and Health Management, Explains that the main reason is due to poor implantation sites in the uterus.
  • Any of the parents who are not in optimum health have a greater chance of producing an overall weaker litter (which will nearly always result in a runt). This can also happen if the bitch is a little too young or has prior health issues.
  • Congenital defects could impair their growth in the womb. When the puppy is born, sometimes it can be visibly seen or in some cases, it will go undiscovered.

What Happens To Runts Of The Litter After They’re Born?

Any runt of the litter will have the odds stacked against them and often times will need the help of the breeder to survive.

All newborn puppies completely rely on their mothers to survive for at least the first three weeks.

Depending on how many are in the litter, it can be quite challenging to receive an equal amount of attention from their mother.

This is particularly true at feeding time. When all the puppies are scrambling to get their much-needed nutrition, the runt of the litter is small and weak, meaning they’re likely to get pushed off by another puppy.

In times like this, it’s essential the breeder is there to step in and help the runt. It’s a good idea for the runt to be feeding close to the mother’s tail, as this is where her milk is the richest.

Without the much-needed support of the breeder, it’s likely the mother will pretty much give up on the runt, especially when the litter is big.

Runt Of The Litter Health Problems

The runt of the litter is, of course, more susceptible to health problems than their siblings.

This doesn’t mean to say they can’t go on to live long healthy lives, and if they are cared for correctly, they can live just as good a life as any other dog.

When the runt is trying to survive amongst the litter, it’s so important that they receive their mother’s milk. Their mother’s milk contains very important antibodies that are designed to protect the puppies until their immune system develops, and they receive the first vaccinations.

If the runt of the litter misses out on this very important stage, their bodies will continue to weaken and they will be very susceptible to infections and other illnesses that could easily kill them.

After the runt is born, the first challenge they will face is dehydration and hypothermia. Both of these things could kill the runt easily, so it’s critical the runt receives their mother’s milk (for hydration) and that they are kept warm.

Is It Bad or Good To Pick The Runt Of The Litter?

Now we’re on to the most important question, is it ok to pick the runt of the litter? we’ll discuss all the important bits and give you our overall advice.

Firstly, when you go to visit the breeder and you see the litter of puppies, watch how the runt interacts with the mother and siblings. Right away you’ll get an understanding of how much of a “runt” the runt, really is! (excuse the tongue twister!)

The better the interactions are amongst the mother and siblings, signifies that this runt hasn’t been rejected too much and will indicate they have had some level of support. A great sign to look for.

Talk with your breeder and ask them if the runt has had check-ups from a veterinarian (if they haven’t, they should) Don’t make a decision before the breeder gets the runt checked. This will be a big factor in your overall decision, sometimes runts will develop health issues which unfortunately cannot be helped. This is a sad reality, but one that happens quite frequently.

Hopefully, you’re dealing with a responsible, caring breeder and they will explain the type of care they have given to the runt after it was born. As long as the breeder gave adequate care for the runt, and runt has passed necessary health checks, the runt is just as good as the other pups.

If your breeder is experienced, they will know that the runt, is worth just as much as any of the other puppies. Don’t look for a bargain, focus on the health of the runt.

So to answer the question, YES it is ok to pick the runt of the litter providing they have passed necessary health check-ups and the breeder has given the necessary care for them after they were born.

Any runt can live just as well as any other puppy, providing they are looked after.

How To Care For The Runt Of The Litter

If you do decide to pick the runt, it’s a good idea you know how to properly care for them.

You’ll need to give extra time and attention to a runt due to the challenges they face from being small and weak. Infection can happen, hypothermia, dehydration or other issues. Here are a few tips to get you on the right path.

1) Keep them on their mother’s milk

If you want the runt of the litter, it’s a good idea to keep them with the breeder for as long as possible ensuring the breeder is giving the runt priority every feeding time. Nothing beats the mother’s milk and it contains many essential anti-bodies to prevent infections and disease. Avoid taking the runt home until they are completely weaned off the mothers’ milk.

Important: Human milk or cow milk is not rich enough for puppies. Do not use this, only use special puppy formulas recommended from your vet.

2) Keep them hydrated and warm

When you take them home, its vital you keep them hydrated through bottle-feeding special puppy formulas that you can get from your local veterinarian. Some are even specially designed for runts. This will provide hydration and food.

You must also keep them warm as they won’t be able to support themselves, at least in the beginning. Create a small cozy area with soft blankets and preferably an electric puppy heating pad underneath to supply constant warmth.

3) Regular check-ups with your vet

The best way to provide support is by having regular check-ups with your vet. Yes, it’s not cheap, but this is what’s necessary to ensure the health of your runt puppy.

Checks and tests will be the only way to know the real internal health of the runt, and you may find out that vaccinations will have to start earlier.

Do Runt Puppies Grow To Be Normal Size?

Although runts of the litter start off smaller than the rest, this doesn’t necessarily mean they stay small.

If the runt puppy has no underlying health issues then it’s more than likely they will grow to be the normal breed size once they start eating solid puppy food. This is, of course, providing they don’t develop any health issues along the way.

It’s all too common, we see people choose the runt of the litter with the hope that they do actually stay small! Their size when they’re a puppy (runt or not), is by no means anything to go by!

If you want a small dog, choose a small breed!

Are Runt Puppies Unhealthy?

It’s simply not true that runt puppies are always unhealthy. SOME runt puppies are unhealthy, and others actually have fairly good health. It comes down to how quickly they received the appropriate care after being born.

Yes, it’s true that some runts are unhealthy, and if they don’t receive the vital support they need when they born, or have been rejected too much by the mother, they’ll likely be too unhealthy to survive.

If the runt puppy is cared for after being born, usually with the help of the breeder, it’s perfectly normal for the runt to be reasonably healthy and go on to live a healthy life.

Important Note: Runts are always underweight, and if their weight falls below 25% of what it should be for their age and breed. It significantly increases the chances of dying. That’s why it’s so crucial to have them properly examined at the vets and ensure they have maximum nourishment.

Is The Runt Of The Litter Harder To Train?

The biggest thing you need to worry about with runts, is their health, try your best not to worry about their trainability in the future. Let me explain why.

As long as your runt is “healthy” and making good progress in terms of weight, size, and general well-being, this will not affect their ability to be trained.

The truth is, you need a lot of patience, dedication, and consistency to train any puppy, runt or not. As long as you have this, your runt will learn just like any other puppy.

One thing to remember is the breed you are buying. THIS is what will make the biggest difference. Some breeds are easy to train, some are hard, some are smart and others are not.

Hopefully, this answers any worry you had about training!

Do Runts Of The Litter Live Longer?

It’s always nice when the underdog wins… Do runts, who are supposedly the weakest and unhealthiest, go on to live longer than normal dogs?

Well, in all honesty, not really.

Once the runt of the litter gets past the critical stages, they typically make a full recovery and live a normal healthy life just like any other dog. As of now, there’s no scientific research to back up the theory or belief that runts of the litter go on to live longer. Sure they can live a long, full healthy life, but longer than normal? It can’t be confirmed.

By the time that particular dog got to that age anyway, it would be very hard to put the long life down to being the runt, perhaps 15 years ago!

What typically determines life expectancy is their breed, health issues (recent), their diet, exercise, and general well-being.

Are Runts Of The Litter Cheaper?

If you’re choosing the runt of the litter, you should expect to pay the same price as any of the other puppies. A cheaper price should set off alarm bells.

This is important, and you should do your checks on the breeder you’re using.

Firstly, the runt should definitely not cost MORE than the other puppies, this is rarely ever the case but some breeders (if they aren’t legitimate) will think of an excuse to charge you more.

One common excuse would be that they’ve had to pay more vet bills for the runt. This isn’t a reason to charge you more. Health check-ups are factored into the pricing of the other puppies, and it should remain the same for the runt.

In the case that the breeder is charging less for the runt, it could mean two things.

1) The breeder genuinely thinks the runt is not worth as much
(unlikely if they’re a good breeder)

2) The breeder knows something you don’t
(cause for concern)

In some cases, the breeder may genuinely think the runt isn’t as valuable, however, if you’re with a reputable breeder who’s been doing it for a while, they will know that runts are just as valuable.

UNLESS they know something you don’t. This is where you need to be very careful. If the breeder insists that the runt is cheaper. You need to confirm the health of the runt, the breeder may be trying to get rid of the runt for a lower price if they know it’s not in full health.

You only need to do one thing when buying a runt. Have them checked by a veterinarian FIRST. This way, you won’t make any mistakes.

Are Runts Of The Litter More Aggressive?

When the runt of the litter is still with their mother and siblings, they will need to develop some level of bravery and “fight” in them to survive, there is the chance that they bring this with them into adulthood.

This isn’t always the case though, most times, the breeder will step in and pretty much support the runt to make sure they survive. Ultimately this will take away their need to “fight” for survival. So this isn’t always going to happen.

On top of that, most runts who are healthy enough to make it to adulthood, turn into normal dogs pretty quickly. They do not tend to be more aggressive than other puppies.

Aggressiveness can potentially come from their parents if they were aggressive, but this isn’t anything to do with being the runt. Aggressiveness can also come from how they have been raised by their humans. But yet again, this has nothing to do with them being the runt.

So to answer the question, no, runts are not likely to be more aggressive than the other puppies in the litter.


Hopefully, now you know the answer to your original question “Is it ok to pick the runt of the litter?” Yes, it is perfectly ok to pick the runt of the litter, providing they are healthy and received the necessary care after they were born. Always ensure they have passed health check-ups with a veterinarian before deciding.

Most Recommended For Huskies

Best Brushes For Husky Shedding 

The Furminator Undercoat Rake and a Hertzko Slicker Brush are by far the two best brushes that any husky owner should use.

Best Online Training Program For Huskies

Brain Training For Dogs has become increasingly popular with Siberian Huskies in the last few years. It’s now recognized as perhaps the best way to train a husky in the most stress-free, positive way.

Best Husky Puppy Book 

If you would like an easy to read guide for training your husky puppy, check out my book The Husky Puppy Handbook on Amazon. All purchases are greatly appreciated.

Helpful Resources:

Check out more breed information on huskies here: Siberian Husky Breed Info here.


The advice given in this article is for educational purposes only and does not constitute professional advice in any context. Before making any decisions that may affect the health and/or safety of your dog, you should always consult a trained veterinarian in your local area. For the FULL disclaimer Visit Here

Copyright Notice: The content produced and published on My Happy Husky is unique and original. My Happy Husky makes an active effort to search for plagiarized content using plagiarism detection software. If plagiarized content is found, action will be taken.

Protected by Copyscape

alex alto

Saturday 13th of June 2020

does being a runt can be passed on to tje next generation offspring?

i bought a husky runt, if she become an adult, would she be able to have offspring that is a runt?


Saturday 13th of June 2020

Hi there Alex!

Great question, usually this will not have an effect on the next offspring. If your current runt grows to be a normal healthy size then it's absolutely possible her litter will also be of "normal" size too. But there can always be runts no matter what. This may or may not happen. Usually in a litter of 4-6 only one of the puppies may be a runt :)

I hope this helps!

Thank you Alex, Harry


Friday 12th of June 2020

Thanks so Very Much. This Information has been Very Helpful. Your Information Has Answered ALL of my Concerns About Buying The Runt Of The Litter. Much Appreciated!


Saturday 13th of June 2020

Thank you so much for your comment Tammy! I am glad to have helped :) Harry

Comments are closed.