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.

How to Choose Your Second Cat: Vet-Approved Tips for Finding a Great Friend for Kitty

Share

two cats playing

If you currently have a cat and are planning to add another to your family, there are several critical factors to consider and steps to take before you can bring your new feline companion home. Once you’ve thought things through, spoken to a vet, and decided to adopt another cat, you’ll need to get a few things ready before your new fur baby arrives.

At the very minimum, your new cat will need a couple of litter boxes, food and water bowls, toys, scratching posts, and a high perch. Remember to take a carrier with you to get your new pet safely home. If you’ve adopted a cat with special needs, make sure you’re set regarding prescription foods and any medications.

But before you get to that joyful moment of seeing your new cat explore their home for the first time, you’ll have to decide what kind of cat best suits your current cat’s needs. Here, we provide a step-by-step guide for selecting a great friend for your cat.

divider 3 paws

How to Choose Your Second Cat

1. Determine If Your Cat Needs a Companion

While you may want to adopt a stray cat you keep feeding, they might not be the best partner for your cat. Older cats that have never lived with other pets often become incredibly stressed by the presence of another animal in the house.

Cats are territorial, so your first cat may be unable to adjust to having another pet around. But if they are accustomed to living with a companion, adopting another cat with a similar personality may be just the thing.

Cats bond deeply with animals that they spend lots of time around, even mourning the loss of close felines and canine companions. However, don’t rush to get a companion, and make sure to choose the perfect one for your cat.


2. Think About Your Cat’s Age

Cats are just like humans; they slow down as they age. If you’re considering adopting a cat, select one in the same age range as your current pet. Older pets often become annoyed with the nonstop antics of energetic kittens, creating a stressful environment for both cats.

If your pet is mourning the loss of a beloved companion, the last thing they probably want to deal with is an inquisitive kitten. Senior pets can be happily paired with adult kitties, and adult cats often do well with kittens, but avoid pairing a senior cat with a kitten to minimize the potential for conflict.

cat smelling kitten
Image Credit: Irina Kozorog, Shutterstock

3. Consider Your Cat’s Health

Cats with health problems might lack enough energy or need longer resting times. Many don’t have the patience to deal with an active addition to the family. Cats suffering from arthritis may not be in the mood to play with rambunctious younger animals and since they’re often in pain, may be just a bit more inclined to lash out.

If your cat has health issues that limit mobility or energy levels, consider adopting an older companion with a similar energy level. A cat with arthritis probably won’t appreciate having to move around to avoid the play bites of a well-meaning kitten.

If you’re uncertain about your cat’s health before considering having another one, consult a veterinarian for guidance.


4. Decide on Long-haired vs. Short-haired

If you already have a short-haired cat and are comfortable with the amount of grooming and vacuuming required, you might prefer to adopt another short-haired or “hairless” cat. Long-haired cats require substantially more grooming than short-haired ones.

Most long-haired cats require daily brushing to avoid developing tangles and skin lesions. If a long-haired kitty has access to the outdoors and lives in a temperate or cool climate, they will shed heavily at least twice a year. However, if your cat is a long-haired kitty, adding a second will make a slight difference when grooming and vacuuming pet hair.

close up of domestic longhair cat
Image Credit: Pictureman2014, Pixabay

5. Determine How Much Space You Have

Living in a tiny apartment doesn’t have to be an issue if you want to adopt a second kitty. But before you take the plunge, make 100% sure you have enough room for two of everything.

You should reduce competition between cats. Sharing litter boxes and food bowls often leads to aggression between feline housemates. Don’t just eyeball your room and imagine where things might go. Create paper cutouts of your current cat’s food bowls, bed, and litter box, and ensure that you have enough room in your space for everything to fit. Remember that if you want to avoid problems, the rule of thumb is one litter box per cat, plus an additional one.


6. Pick Male or Female

You don’t need to worry too much about sex if you adopt an adult cat. There are few, if any, sex-based behavioral differences between spayed female and neutered male cats. Factors such as age and general temperament are more important than sex when selecting a good buddy for your cat, with one exception. If you have a young adult male, consider adopting a female kitten to minimize territorial behavior.

Adult cats tend to be more accepting of kittens, and male cats often become territorial in the presence of other male cats.

male cat lying down
Image Credit: Ibi-Eckert, Shutterstock

7. Know Your Cat’s Feline Leukemia Virus Status

If your current cat is feline leukemia virus (FeLV) positive, you’ll need to consider that when selecting a new pet, as current veterinary guidance suggests that FeLV-positive cats only live with other cats also carrying the virus. FeLV spreads through saliva and is easily transmitted between cats that live together.

When active, the virus weakens the feline immune system, drastically increasing the risk of various infectious diseases, including cancer. Many FeLV-positive cats and kittens are thriving worldwide, but potential adoptive families often pass over cats that test positive for the virus.


8. Decide on Indoor or Outdoor

If your cat is an indoor pet, you might lean toward adopting another indoor cat. Cats that are kept indoors are less exposed to infectious diseases, like rabies virus, and parasites, like intestinal worms, fleas, and ticks.

Keeping your cat indoors and providing fun activities is critical to ensuring that they live a long, healthy life. But your indoor cat will lose many of the health benefits associated with staying inside if they regularly sleep next to an adventurous outdoor cat that comes into contact with dangerous viruses, bacteria, and parasites every day.

tabby cat sleeping outside
Image Credit: Ben Kerckx, Pixabay

divider 3 paws

Final Thoughts

Adding a new pet to your family is a huge commitment, and finding the right one can take a bit of time. Considering the characteristics you’re looking for in a second cat can go a long way toward ensuring the change doesn’t prove too stressful for anyone.

Keep your current cat’s background in mind when deciding whether or not to extend your family. Cats that have never really lived around other kitties may not appreciate the presence of another animal. But even if your cat has spent most of their life around other animals, there’s no guarantee they’ll accept a new housemate. Introduce the two slowly under supervision to reduce the chances of a conflict.

Related Reads:


Featured Image Credit: AdinaVoicu, Pixabay

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

Weird Cat Behaviors That Actually Make Perfect Sense

We have been sharing our lives with cats for thousands of years, yet we still find ourselves genuinely stumped by what they get...

The Dream of Talking to Cats Just Got Closer to Becoming a Reality

If you’ve ever wished your cat could simply tell you what they wanted, you’re not alone. From the meow that wakes you before...

Kizzy: The Feline Princess With a Purpose

We were first introduced to Miss Kizzy after she won a licky-treat challenge hosted by Professor Fluffovich, our resident feline research specialist. While...

Chatting With Sally About Mission Meow & Helping Cat Rescue Organizations Collaborate | Chatty Cattys, Episode 24

In this episode of Catster’s podcast, Chatty Cattys, Nicole and Dr. Karyn sit down with Sally Williams, the founder of Mission Meow, for...

More related

6 Best Kitten Milk Replacers in 2026 – Reviews & Top Picks

Due to unforeseen circumstances, some people must take in newborn kittens that need to be cared for around the clock. There are many...

How Often to Change Your Cat’s Water? Vet-Approved Care Tips

We all know that cats need fresh water daily, but if you have a larger bowl that they don’t empty each day, how...

Do Neutered Cats Spray? Vet-Reviewed Behavior

Cats are wonderful companions, but they do exhibit some quirks that must be dealt with accordingly. One common problem among cat-owning households is...

10 Best Dry Cat Foods in the UK in 2026: Reviews & Top Picks

Whether you feed your cat a combination of wet and dry food or just dry food, getting the right kibble is important. It...

Keep reading

Soulistic Cat Food Review of 2026: Recalls, Pros & Cons

Review Summary Soulistic Cat Food often receives high praise and top-quality rankings with its simple formulas marketed to not only feed your cat’s body but also to “feed your cat’s soul.” In this review, we deep-dive into the brand to...

Soulistic Cat Food Review

I Just Adopted a Cat and They Won’t Stop Meowing: Vet-Reviewed Causes & Advice

You want a new family member that will always comfort you in your ups and downs, but adopting a cat can be an overwhelming experience. Sometimes, your new cat will meow all night long, leaving you frustrated about what to...

Ginger tabby young cat sitting on a wooden floor looks up, asks for food, meows

How to Safely Burn Incense Around Cats: 3 Vet-Approved Tips

Incense is a plant material that gives off certain scents when burned, and it’s been around for centuries. People use it for multiple purposes, such as meditation, getting rid of negative energy, relaxation, and aromatherapy. Incense is deeply embedded within...

lighted incense stick

Can Cats Eat Mint Ice Cream? Vet-Reviewed Health Facts

It’s funny that cats are often portrayed lapping at saucers of cream or a dish of milk, because the fact is, cats shouldn’t have dairy. While kittens can handle milk, most cats begin to become lactose intolerant after they reach...

Can Cats Eat Mint Ice Cream

Is Coleus Toxic to Cats? Vet Approved Advice

Even if you don’t know it, you probably have seen beautiful coleus plants in people’s homes and gardens. These colorful plants are common staples because of their beauty, but that doesn’t mean they’re completely safe for cats. So, is coleus...

Catster_Is Coleus Toxic to Cats

Can a Cat Take Baby Aspirin? Vet-Approved Facts & Safety Tips

No one wants to think about their beloved pet in pain, so it can be tempting to give your cat some relief from your medicine cabinet. If you suspect your cat is hurting, you might wonder if a cat can...

Baby Aspirin Compress Tablets Medicine

How to Cat-Proof Wires: 9 Vet-Approved Solutions

Unfortunately, “curiosity killed the cat” can be an apt saying when it comes to electric wires and cats. They are known for their constant inquisitiveness and love for exploring every nook and cranny. Some cats are also mouthy and tend...

man-is-insulating-a-black-electrical-wire

Cat Shock Collars: How They Work, Safety Advice & Alternatives (Vet-Reviewed)

Several products are available to train pets, but the shock collar is one of the most controversial. It’s a device more commonly associated with training dogs and is used to train an animal to stop a specific behavior. Some swear...

cat with collar_Pixabay

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.