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.

Signs of Aging in Cats: What Is Normal, What Is Disease? (Vet-Reviewed)

Share

ginger-cat-on-owners-lap

The average cat lives for 13 to 17 years, but some can make it well into their 20s. Many of the changes their bodies go through as they age are normal, but there are also ones that can be signs of illness.

Keeping cats happy and healthy during their golden years involves knowing what’s normal and which signs indicate a health problem. Keep reading to learn more about 12 signs of feline aging: four that are normal and eight that can be cause for concern. However, it’s best to speak to a veterinarian if you have any questions about your companion’s health.

divider 3 paws

The 4 Normal Signs of Aging

Cats are considered seniors when they hit 10 years old, and although many have several great years ahead of them, several physical changes occur as they age. Twice-yearly wellness checkups can catch developing conditions in senior pets as early as possible when they’re often easier to treat.

1. Mellowing Out and Slowing Down

cat-sleeping-on-a-cat-tree-bed
Image Credit: Alex Di Stasi_Shutterstock

It’s normal for cats to become less active as they age. Most start sleeping more as they get older. Cats can also become deep sleepers when they get old, which is caused, at least in part, by sensory decline.


2. Experiencing Hearing and Vision Decline

A cat’s senses decline as they age, and it’s perfectly normal for their vision and hearing to be not quite as sharp as they once were. Cats are good at hiding it when they have trouble hearing or seeing. Pet parents frequently don’t notice vision changes, for example, until cats start doing things like running into furniture.


3. Needing Extra Grooming Help

Cats sometimes need assistance with grooming as they age. It’s normal for older cats to groom themselves less than they used to when they were younger.

Older kitties benefit from regular brushing to keep their fur smooth and glossy and attention to their ears to prevent excessive wax from building up, as their ears frequently get waxier as they age.


4. Being Less Patient

Cats sometimes become less patient when they hit their senior years, and waking older cats from naps is a good way to get on their bad side. Older cats aren’t interested in playing with active kittens, and they’re often faster to end unwanted encounters than they were when younger.

divider 3 paws

The 8 Common Signs of Illness in Older Cats

There are a few diseases and conditions that are commonly found in older cats, including cognitive decline, hyperthyroidism, kidney disease, diabetes, high blood pressure, arthritis, heart disease, cancer, and dental disease.

Weight loss, appetite changes, and mobility issues are just a few signs associated with many diseases senior cats are prone to develop.

1. Excessive Vocalization and Restlessness

cat meowing
Image Credit: Stanimir G.Stoev, Shutterstock

Cats experiencing cognitive decline sometimes yowl and have trouble settling down. Other common signs of the condition include disorientation, inappropriate elimination, forgetfulness, and being active late at night.

Cats with hyperthyroidism frequently become restless, and the condition can prompt aggressive behavior in some.


2. Increased Water Consumption

Older cats benefit from increased hydration to keep their bodies running smoothly, but diabetes and kidney disease can also prompt them to drink more than they usually do.

Cats with chronic kidney disease are notorious for urinating more frequently, and they may also lose weight, have strong breath, and experience stomach issues.


3. Sudden Difficulty Seeing

vet examining a cat's eye with a device
Image Credit: santypan, Shutterstock

While declining vision is normal when cats become seniors, sudden vision loss should always be taken seriously and should receive immediate veterinary attention.

Kidney disease and thyroid problems can cause high blood pressure, which can cause cats to go blind.


4. Mobility Issues

Cats that have trouble jumping or getting around need to be seen by a veterinarian since mobility issues can be signs of arthritis. Cats spend more time being inactive when movement causes pain, and they have trouble grooming themselves.

Those with tender joints sometimes become aggressive when the areas are touched. Limping and swollen joints are also potentially seen.


5. Weight Loss

old-and-sick-cat
Image Credit: Tiina Tuomaala, Shutterstock

The ultimate goal is for cats to enter their senior years at appropriate weights and stay there as they age. Older cats shouldn’t lose or gain weight, but they undergo metabolic changes, so the amount they need to consume sometimes changes.

Several diseases that are common in senior pets can cause them to lose weight, including cancer, hyperthyroidism, diabetes, kidney disease, and dental problems. It can also be an indication of heart disease.


6. Appetite Changes

Eating more or less than normal can both be indications of illness. Cats with overactive thyroids, for instance, eat far more than usual and lose weight at the same time.

They also tend to be restless, have difficulty sleeping, and drink lots of water. Pets with dental disease frequently avoid eating, and kidney disease can take away their appetites. Cancer can cause cats to eat more or less, depending on how they’re affected.


7. Difficulty Eating

Lazy and well-fed cat looking for food and not eat
Image Credit: Elena Kutepova, Shutterstock

Dental disease is pretty common in cats, including younger ones. It can be quite painful and cause them to have difficulty eating, which can lead to weight and muscle loss.

Common signs of dental disease include having trouble chewing and a lack of interest in eating. Cats suffering from dental disease have trouble keeping food in their mouths as well.


8. Having Bathroom Accidents

Cats can start going to the bathroom in inappropriate places for several reasons, including mobility issues. Those with arthritis sometimes have trouble making it to the bathroom if they have to go up and down stairs.

They can also find it difficult to get into and out of litter boxes with high sides. Pets with conditions such as kidney disease, hyperthyroidism, and diabetes that prompt increased urination are also likely to have accidents. Urinary tract infections, which occur relatively frequently in older cats, can also cause cats to pee outside of their litter boxes.

Remember to have regular vet visits when owning an elderly cat to keep their health and well-being. If you’re concerned about your cat’s health we suggest you speak to a vet.

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

divider 3 paws

Conclusion

Cats can live into their 20s, and their bodies undergo changes as part of the aging process. Knowing what’s normal and what could be an indication that something is wrong is essential for keeping older cats happy and healthy.

It’s okay for seniors to sleep more and be slightly less tolerant of rambunctious behavior as they get older, but appetite changes, difficulty getting around, weight loss, and inappropriate elimination require medical attention. Senior cats should have at least two veterinary examinations per year to ensure any developing chronic illnesses are caught as early as possible.


Featured Image Credit: Karpova, 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.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

One in 100 Cats Gets Diabetes – Here’s How to Catch It Early

One in every 100 cats develops diabetes.1 That’s not a rare, unlucky condition reserved for cats with obvious health problems. It’s common enough...

Dramatic Rescue Turns Into Dramatic Reunion

What started as a routine call for the RSPCA became a heroic, five-hour rescue featuring one trapped and traumatized cat, an emotional family...

Ask Dr. Paola – Help! How Do I Know if it’s Ear Mites! (May 4, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Hope for the Tiniest Fighters: Baby Kitten Rescue | Heroes of the Pet World

In a world where the smallest and most vulnerable animals are often the easiest to overlook, Caroline and Baby Kitten Rescue’s work is...

More related

11 Best Cat Water Fountains in 2026 – Reviews & Top Picks

Our cats need to drink enough water every day so they can stay hydrated and feel great. One problem, however, is that cats...

Do Cats Get Senile? Vet-Approved Signs & How to Help

As cats age, their behavior can change. They may sleep more, have less energy, suffer from joint problems, and suffer a decline in...

Lymph Node Enlargement (Lymphadenopathy) in Cats – Causes and Care Guide (Vet Answer)

Lymph nodes are found throughout your cat’s body, and are an important part of their immune system. Peripheral lymph nodes are located on...

Zen Clipper Cat Nail Trimmer (2026 Review)

Review Summary Nail trimming is an essential part of cat ownership to keep your kitty’s nails in tip-top shape while also protecting your...

Keep reading

Why Does My Cat’s Breath Stink? 9 Vet Reviewed Reasons & Solutions

If your cat’s breath seems to stink when you lift them up for a cuddle, there can be a few reasons. A healthy cat’s breath shouldn’t smell unpleasant, so if you find yourself wincing when you smell your cat’s breath,...

man holding cat with bad smell

How Do I Help My Cat With Arthritis? 10 Vet-Approved Home Care Tips

Cats, particularly older ones, can suffer from arthritis. Technically known as osteoarthritis (OA), the condition involves progressive joint inflammation and degeneration, which is influenced by many factors. The resulting pain often reduces mobility and negatively impacts cats’ quality of life....

cat with arthritis

Why Do Cats Bite Each Other’s Necks? The Interesting Reasons

If you have more than one cat, you may have noticed that cats have a tendency to bite each other on the neck. Sometimes these bites are on the scruff of the neck, while other times they happen in the...

Orange cat biting black cat on the neck

Can Cats Eat Rice Pudding? Vet Reviewed Nutrition Facts & FAQ

Sometimes, it can be tempting to treat our cats to a little bit of something we are enjoying, but it can be tricky to tell which foods are good for them and which are not. If you are wondering whether...

Can Cats Eat Rice Pudding

Do All Cats Scratch Furniture? Reasons & Prevention Tips

Sometimes, cats display behaviors that our owners are not fond of. For example, we have all heard horror stories about cats ruining a couch or shredding up a new lounge chair. So, do all cats scratch furniture? The truth is...

male domesetic cat scratching furniture with front claws

What Do Cats Need in Their Diet? 6 Vet Verified Essential Nutrients

Cat owners want their beloved felines to live a long, happy life, and that long and happy life starts with nutrition. Cats are obligate carnivores, meaning they require nutrients found in animal meat to thrive. A critical aspect of being...

black and white old cat eats from a plate

How Many Times Can a Cat Get Pregnant in a Year? Vet-Reviewed Facts & FAQ

Cats are determined and very successful when it comes to mating. Currently, the only effective methods for preventing unwanted pregnancies, the exponential growth of unowned cat populations, and those getting handed into animal shelters is getting your cat spayed, or...

male hand touching the pregnant bacl and white cat's belly

Feline AIDS: Vet-Reviewed Signs, Causes & FAQ

Feline AIDS is a retrovirus infection that attacks a cat’s immune system by targeting the white blood cells. This causes their immune system to become weaker than normal, putting them at higher risk of illness for diseases and complications completely...

hand holding cat's feline AIDS test with positive result

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.