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

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.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

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.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Why Is My Cat So Jumpy All of a Sudden? 8 Vet Reviewed Reasons 

It can be alarming to see your cat act jumpy all of a sudden, especially out of nowhere. Cats cannot tell us exactly...

How to Tell if Your Cat Has Separation Anxiety: 8 Vet-Reviewed Signs to Look For

You may have heard about dogs having separation anxiety, but this condition can affect cats, too. If you’re wondering if cats can have...

How Many Calories Should a Cat Eat? Vet-Reviewed Cat Feeding Guide

All cats have individual dietary needs based on their breed, size, age, and health conditions. As notoriously picky eaters, finding the right food...

Can Cats Eat Jicama? Vet-Verified Nutritional Facts & Advice

Pet cats typically consume a commercial diet that meets all their nutritional requirements. However, cats are natural predators, so they go after small...

More related

7 Amazing Facts About White Cats You’ll Love to Learn

While all cats are incredible and perfect, white cats have their own special magic. Some cat-loving people claim that white cats tend to...

Can Cats Eat Crickets? Vet Approved Health Facts & Precautions

We all know that our cats are carnivorous beasts hidden in cute bodies. Cats are obligate carnivores, which means the majority of their...

Vet Clinic Is Booked for the Day, What Do I Do? 5 Vet Approved Tips

Pets need to go to the vet on occasion, just like we need to visit our doctors occasionally. Often, when our pets need...

10 Best Halloween Cat Toys of 2025 – Reviews & Top Picks

Halloween can be a fun time of year, but we often overlook our kitties. While cats may not understand the concept of a...

Keep reading

How Long Can Cats Go Without Water? Vet-Verified Science & Facts

Cats are notorious for not drinking enough water, to the point that there is an entire industry of pet fountains to entice cats to drink more. Even if you’re one of the lucky cat owners whose cat does drink enough...

Kitten drinking from a water bowl

Nutro Cat Food Review of 2025: Recalls, Pros & Cons

Nutro Cat Food Review Summary Founded in the 1920s, Nutro is an American pet food manufacturing company and a subsidiary of Mars Inc., which also manufactures other pet food brands, including Whiskas, Royal Canin, and Iams, and is now headquartered...

Nutro Cat Food Review

Can Cats Eat Vanilla Pudding? Vet Approved Facts & FAQ

Cats are independent creatures, but they rely on us humans to take care of their nutritional needs. Commercial cat food is the easiest way to feed a cat, but sometimes, felines get into other types of food due to curiosity...

Catster_Can Cats Eat Vanilla Pudding_v1_Dec 4 2024

How to Use Cat Litter Deodorizers: 5 Vet-Approved Tips & Guidelines

It can be hard to mask the smell of cat litter when you share your life with cats. The last thing you want to do is walk in the door and inhale that intense, distinct odor. Many people resort to...

orange cat beside litter box

Can Cats Eat Peaches? Vet-Reviewed Facts & Precautions

Peaches are among the sweetest and most delicious natural treats there are. Since cats are so curious by nature, you may notice your feline coming over for a sniff, showing interest in the peaches you’re snacking on. If you’re like...

Can Cats Eat Peaches

Can Cats Share a Litter Box? Vet-Reviewed FAQ & Tips

Although cat litter trays are an unglamorous side of cat parenting, these items are more than just a bathroom for cats, as they also act as sacred spots and private retirement places for kitties. For this reason, the short answer...

multiple kittens in a litter box

Cat Diarrhea: Causes & Care Guide (Vet Answer)

If your cat has diarrhea, should you always see a vet? What if your cat has diarrhea but seems fine? Let's look at why cat diarrhea happens and what to do....
A small gray and white fluffy cat getting out of a litter box.

6 Best Cat Foods for Allergies in Canada: 2025 Reviews & Top Picks

Although allergies in cats are rare, there is always the unfortunate possibility that your cat will suffer from allergies and intolerances. Coat deterioration, itchiness, and stomach discomfort are symptoms of intolerances that sometimes go unnoticed. Cats rarely suffer from severe...

Cat scratching his ear while laying on a bed