Get

In Your Inbox

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

Littermate Syndrome in Cats: Vet-Reviewed Signs, Causes & Care

Share

two kittens playing

If you want to add a new cat to your family, you might wonder whether two kitties are better than one. When adopting kittens, for example, it is often suggested that taking home a pair of baby cats is ideal. However, you might be concerned that related cats will develop a behavioral condition known as littermate syndrome, which is problematic behavior usually developed between two dogs raised together from a young age.

In this article, you’ll learn what littermate syndrome is, including the signs of the condition. We’ll also cover the causes of littermate syndrome, why it’s not recognized in cats, and other issues that may look similar in sibling kittens.

divider cats oct 2024

What Is Littermate Syndrome?

The term littermate syndrome is used to describe problematic behaviors that generally occur in two dogs who are raised together from a young age. It is also known as littermate dependency, but the two animals don’t have to be related for it to occur. Any pair of young animals raised together can develop littermate syndrome.

Pets with littermate syndrome are believed to bond more closely with each other than with the humans in their lives, leading to behavioral problems in adulthood. For example, they may develop anxiety if separated from each other or have trouble learning independently.

Veterinary behaviorists agree that littermate syndrome doesn’t automatically occur when two young dogs are raised together. Instead, they believe that the difficulty and challenges of owners trying to pull double duty when training and socializing the animals lead to inappropriate behaviors associated with littermate syndrome.

The good news for cat owners is that littermate syndrome isn’t currently recognized to occur in cats. Cats are naturally more independent than dogs and typically don’t have problems with socializing or bonding as pairs of puppies do.

In fact, adopting a pair of kittens can sometimes make your life easier since the energetic animals can keep themselves entertained and exercised.

two kittens playing together outdoors
Image Credit: CebotariN, Shutterstock

What Are the Signs of Littermate Syndrome?

Pets with littermate syndrome may display a variety of behavioral signs. They are often extremely attached, ignoring other humans or animals when the other is around. This attachment can cause them to have a hard time bonding with people and lead to poor socialization and training challenges.

Poorly socialized animals can have problems with aggression or fear because they never learned how to respond appropriately to unfamiliar situations. Littermate syndrome can also lead to separation anxiety in adult animals.

What Are the Causes of Littermate Syndrome?

As we mentioned, experts believe that it’s not simply the act of two pets being raised together that causes littermate syndrome, but specific experiences and challenges that go along with it. For example, because it’s so time-consuming to train and socialize a puppy, owners with two puppies may try to work with both animals at the same time.

However, because animals are individuals, the same socialization and training methods may not work for both puppies. In addition, the puppies may not get the time they need to process and develop at their own pace. Housetraining can be frustrating because the most effective methods rely on routines and positive reinforcement, which can be hard to accomplish with two dogs.

Behaviors like chewing, scratching, or play-biting are doubly frustrating when trying to redirect two animals. You may miss chances to reward the behavior you’re trying to encourage or accidentally reinforce those you aren’t.

To sum up, young animals who don’t get the chance to experience training and socialization as individuals are more likely to develop behaviors associated with littermate syndrome. Again, these issues typically occur in dogs rather than cats.

toyger kittens
Image Credit: Kutikova Ekaterina, Shutterstock

divider cat faces oct 2024

Frequently Asked Questions (FAQ)

Is It Better to Adopt Two Kittens?

As we discussed, two kittens raised together are unlikely to develop the behavior problems summed up as littermate syndrome like puppies do. Adopting two kittens at once certainly has benefits. Kittens often form a strong bond and get along well together, though this is not always the case.

Kittens can help tire each other out by playing together rather than pestering you or another pet for attention. Interestingly, research suggests that owners who adopt two kittens from a litter are more likely to keep them long-term. However, kittens don’t necessarily need to be adopted together to thrive.

Adopting two kittens is a good option if you have the space and money, but it’s not always necessary. With attention and proper environmental enrichment, one kitten can be perfectly happy at home with their humans.

My Cat Seems Lonely. Should I Get a Second Cat?

 Unrelated adult cats don’t always have the easiest time bonding with each other. Before getting a second cat, consider the personality of your existing pet. Calm, friendly cats may be fine with a new friend, while shy cats may think the world is ending.

As we discussed, cats can fill their social and emotional needs by other means, such as human attention or even a dog friend. If you want a second cat, you may have better luck introducing a kitten into the house than another adult.

Plan to introduce the new cat gradually, and don’t be surprised if it takes months for the animals to get along. There’s also a chance that they never will.

man holding two Canadian sphynx kittens
Image Credit: Mariia Boiko, Shutterstock

divider cats oct 2024

Conclusion

Because cats generally aren’t recognized to get littermate syndrome, the question of whether to adopt two kittens will depend on other factors. Remember, two cats require twice as much food, supplies, and veterinary care. They also need more time and attention than a single animal. Consider your budget and downtime when deciding whether to adopt more than one kitten. For the cat’s sake, do not feel pressure to take on more pets than you can afford or care for successfully.


Featured Image Credit: Chendongshan, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* 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 Catster for pet parents!

Your feedback really matters.

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

Join the conversation

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.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

Chatting With Dr. Matt McGlasson About Special Needs Kitties, Social Media Fame, and Rating Cat Toe Beans | Chatty Cattys, Episode 32

In this episode of Catster’s Chatty Cattys podcast, Dr. Karyn and Nicole sit down with a very special guest: veterinarian and social media...

Does Your Cat Need A Friend? How to Tell If Your Cat Is Lonely

Cats have a reputation for being perfectly happy on their own – independent, self-sufficient, and solitary. But, like many stereotypes, this one does...

Proof That Moving Cats Indoors Is Easier Than You Think

We know that indoor cats live longer and have significantly lower rates of illness and injury than those that spend part or all...

Why Cats Love To Get High

If you’re trying to find a cat in any home, the search almost always ends by looking up. They’ll be on top of...

More related

How to Pet Your Cat & Find Special Places They Love: Vet-Reviewed Guide

Cats have quite complex personalities and a combination of several personality traits, with one or more being more dominant. Some cats are incredibly...

Excited Cats Is Now a Part of Catster

Catster is purring with delight to welcome the newest addition to our family: Excited Cats! We have always aimed to be the most...

Ghost Stories Starring Cats: 6 Spooky Tails

Most people don’t find cats very scary. In fact, they find cats adorable, friendly, and fun. But that is not always the case....

Are Petunias Poisonous to Cats? Vet Approved Houseplants Examined

Cats are known for being curious and getting into things that may not necessarily be great for them. After all, they are animals,...

Keep reading

Can Cats Get Laryngitis? Vet-Verified Health Facts

Your usually vocal cat suddenly struggles to find their voice. They open their mouths, but either nothing comes out at all, or all they’re able to muster is a quiet, raspy meow; what gives? They could be dealing with feline...

Cat-meowing

How Many Bones Do Cats Have? Vet-Approved Feline Anatomy Explanation (With Infographic)

Your average house cat has around 230 bones in their body. That’s quite a few more than the 206 bones in a human’s body! Felines have some interesting adaptations related to their skeletons. For example, cats have a flexible spine...

brown black tabby maine coon cat

Multiple Myeloma in Cats: Our Vet Explains Signs, Causes & Treatment

If you’re interested in multiple myeloma, your cat may have been recently diagnosed with this rare disease. If this is the case, we’re very sorry and understand you’ll want to know everything about the condition and what to expect moving...

sad, bored or sick cat

9 Ways to Get Your Cat to Like Using the Litter Box – Vet Approved Methods

One of the great things about cats is that, unlike dogs, they usually don’t have to be potty-trained. Due to their instincts, they simply know how to use a litter box; covering up their waste is hardwired into them, making...

orange cat beside litter box

Laser Declawing Your Cat – Vet-Reviewed Facts & Considerations

Veterinary professionals and reputable veterinary and animal welfare organizations, such as the American Veterinary Medical Association and the American Society for the Prevention of Cruelty to Animals, have released statements against cat declawing if done for the purpose of managing...

paw with long and sharp claws_RJ22_shutterstock

Will Ammonia Keep Cats Away? Humane & Natural Alternatives

Even the most devoted animal lover doesn’t want cats trampling through their garden or defecating on their lawn. You can make many DIY cat repellants to keep cats out of undesired areas, and you may have read that spraying ammonia...

ammonia

Will My Cat Eat My Guinea Pig? Risks, Safety Tips & FAQ (Vet-Verified)

If you’re a cat person who is interested in becoming a guinea pig person or vice versa, you may be wondering if it’s safe to bring the two together. Do cats eat guinea pigs? The good news is that many...

light brown guinea pig in cage enclosure with food

How Early Can You Hold a Kitten? Early Life & Vet-Reviewed Safety Tips

Cats are known to be exceptional at caring for their young ones, and there’s nothing more exciting than having a cat give birth to a litter of kittens at home. If you have a cat that has recently given birth,...

man-holding-kitten

Love Cats? So Do We! Join the Catster 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.




Sign up for the Catster Email Newsletter

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.