When Is a Cat a Senior? Cat Life Stages and Check-ups

A cat is a senior once it is over 10 years old, according to the 2021 AAHA/AAFP Feline Life Stage Guidelines. From 7 to 10 years it is a mature adult, from 1 through 6 years a young adult, and under 1 year a kitten. The guidelines recommend that every cat is examined at least once a year, and senior cats at least every 6 months.

What are the life stages of a cat?

The guidelines were written by a task force of experts in feline medicine, convened by the American Animal Hospital Association (AAHA) and the American Association of Feline Practitioners (AAFP). They define four age-based stages and a fifth that is not tied to age:

Stage	Age
Kitten	Birth up to 1 year
Young adult	1 year through 6 years
Mature adult	7 to 10 years
Senior	Over 10 years
End of life	Any age

The older guidelines had six stages. The task force reduced them to five because a five-stage grouping makes clinical protocols easier to carry out and simplifies the conversation between the vet’s team and the owner. AAHA’s 2023 senior care guidelines note that both the 2021 life stage guidelines and the 2021 AAFP Feline Senior Care Guidelines define a senior cat as one greater than 10 years of age.

The guidelines call a cat’s life stage the most fundamental factor a vet considers at a regular examination. Because a cat can move from one stage to the next in a short time, they say every examination should include a life stage assessment. They also stress that any age grouping is an arbitrary line along a spectrum, not an absolute, and that individual cats vary. As an example, they say some senior cats aged 10 years and older stay in excellent physical condition and may be best treated as mature adults, at the vet’s discretion.

End of life can occur at any age. AAHA and AAFP cover it separately, in the 2016 AAHA/IAAHPC End-of-Life Care Guidelines and the 2021 AAFP End of Life toolkit. The 2021 guidelines were prepared for AAHA and AAFP, so ask your vet what applies in India. You can check your own cat’s stage with the cat age calculator.

How often should a cat see a vet?

The task force recommends a minimum of one examination a year for all cats, with more visits as an individual cat needs. Senior cats should be seen at least every 6 months, and more often if they have a chronic condition. AAFP’s “Feline Life Stages” handout shows the same pattern: a minimum of one check-up a year for kittens, young adults and mature adults, and a minimum of every 6 months for seniors.

The guidelines explain why this needs saying. They describe cats as substantially underserved in primary care compared with dogs, citing a 2006 figure of 2.3 vet visits a year for dogs against 1.1 for cats, and say the imbalance persists. They give two reasons behind the belief that cats do not need medical care: signs of illness and pain are often hard to detect in a reclusive or stoic cat, and cats are seen as self-sufficient. They also name a major barrier to visits: concern about how stressful the visit will be for the cat. AAHA and AAFP promote feline-friendly handling to reduce that stress.

At each visit, the guidelines say the cat’s body weight, body condition score and muscle condition score are important parts of the examination at all life stages, because they allow changes to be spotted early. A few other points apply at every stage:

• Identification. The guidelines say all cats should be microchipped for permanent identification.
• Teeth. Dental care should begin at the first kitten visits and continue for life. Only an anaesthetised cat can have a complete and thorough oral examination, and the guidelines say anaesthesia-free dentistry is not appropriate. If an adult cat will not allow tooth-brushing, a dental diet may help.
• Food. Cats should eat diets labelled with a statement of nutritional adequacy from the Association of American Feed Control Officials. AAHA and AAFP do not endorse feeding cats raw or dehydrated non-sterilised foods, including treats of animal origin.

What check-ups do kittens and young adult cats need?

Kittens (birth to 1 year). A kitten’s physical examination typically looks for problems present from birth, such as a heart murmur, a hernia or a cleft palate, and includes a detailed look at the teeth and mouth. The guidelines name rabies, feline herpesvirus type 1, feline calicivirus and feline panleukopenia among the core vaccines. They recommend revaccination against the last three at 6 months of age. They call it prudent to give kittens, and newly adopted cats of unknown history, preventive treatment for parasites using broad-spectrum products. Your vet chooses the vaccines and the products.

Young adults (1 through 6 years). The guidelines give obesity prevention as an example of what to focus on at this stage. A body condition score of 6 or 7 out of 9 is overweight, and 8 or 9 is obese. They list diabetes, lameness, non-allergic skin disease and urethral obstruction as conditions that overweight cats are predisposed to. They also identify neutering as a risk factor for obesity, especially in male cats, and note that free-choice feeding can lead to overeating. Declining play activity increases the chance of weight gain too.

For obesity treatment, the guidelines say prescription diets are indicated, and they tell vets to warn owners of overweight cats that simply feeding less of a maintenance diet may result in vitamin and mineral deficiencies. Ask your vet for a plan before cutting food.

Two other points are specific to young adults. Lower airway disease is common, and the guidelines note that coughing in a cat is not caused by hairballs. Heart disease such as hypertrophic cardiomyopathy is often without obvious signs, or shows only as a change in activity or exercise tolerance. Some owners think vomiting hairballs is normal, so tell your vet about vomiting and diarrhoea as well as coughing.

What check-ups do mature adult and senior cats need?

For mature adult and senior cats, the history and examination focus on early detection of disease, and these cats are often diagnosed with more than one condition. The guidelines say vets should ask specific questions about changes in appetite, increased drinking and urinating, vomiting, hairballs and diarrhoea. They should also ask about increased night-time activity and crying out, and any change in the cat’s normal habits or activity, which may point to cognitive dysfunction, reduced mobility, pain or reduced vision.

Pain and anxiety are most often a concern at these stages, though they can occur at any age, and the examination gives particular attention to pain, the abdomen and the thyroid. Osteoarthritis is described as one of the most significant and underdiagnosed diseases in cats, so a detailed examination of the joints and muscles is critical. Changes in grooming are also a clue: reduced grooming may point to illness, bladder pain, joint pain or reduced mobility, while increased grooming may point to a skin problem. The guidelines say that reviewing subtle signs of anxiety, illness and pain with owners encourages them to be vigilant and seek care early.

Mature adults (7 to 10 years). The guidelines name increased vigilance for early detection of kidney disease in mature adult and senior cats. They say vets should strongly consider a blood test for thyroid hormone (T4) in an apparently healthy mature adult cat, while noting that few studies have identified the age at which hyperthyroidism begins and that firmer recommendations need more data. Ask your vet whether and when to test.

Seniors (over 10 years). The guidelines say comorbidities are extremely common in senior cats and can affect diagnosis and treatment. They say being underweight is a common problem, and that some senior cats digest food less well, which can lower body condition and call for more calories. The guidelines say healthy mature adult and senior cats should not be protein restricted. Cats with chronic kidney disease are different: the guidelines say they may benefit from prescription renal diets, so ask your vet before changing the diet. Prescription diets may be indicated more often at these stages for conditions such as kidney disease, obesity, an overactive thyroid and arthritis.

Water matters. Some cats prefer certain things about how they drink, such as freshness, taste, moving water and the shape of the bowl, and diets with more water, such as canned food, may increase water intake. The guidelines also say that regular examinations and test results let a vet see trends early. They give increasing creatinine, SDMA, total T4 or blood pressure, and decreasing urine specific gravity, as examples. An examination of the back of the eye can show signs of eye disease or high blood pressure. Your vet decides which tests your cat needs.

How old is my cat in human years?

AAFP’s “Feline Life Stages” handout puts a cat of 6 months at about 10 human years, 1 year at 15 and 2 years at 24, then adds 4 human years for each cat year. Selected rows from its table, with the life stage from the 2021 guidelines:

Cat’s age	Human years	Stage
6 months	10	Kitten
1 year	15	Young adult
2 years	24	Young adult
4 years	32	Young adult
7 years	44	Mature adult
10 years	56	Mature adult
12 years	64	Senior
15 years	76	Senior
20 years	96	Senior

The cat age calculator uses the same table, joining the points with straight lines for ages in between.

It is an approximation. A 2021 peer-reviewed paper on epigenetic clocks for cats described this rule of thumb as “a very crude approximation”. One of its clocks expressed a cat’s age as a fraction of the species’ maximum lifespan instead of giving a conversion table. Use the human-year number for context, and the life stage for decisions. Dogs follow a different curve, explained in Dog years to human years: why multiplying by 7 is wrong.

Frequently asked questions

How old is a 1-year-old cat in human years?

About 15, according to the table in AAFP’s handout. A 2-year-old cat is about 24, and each later year adds about 4. A 2021 paper called this rule of thumb a very crude approximation, so treat it as a guide.

At what age is a cat a senior?

The 2021 AAHA/AAFP guidelines define a senior cat as over 10 years old, and a mature adult as 7 to 10 years. They add that age groupings are arbitrary, and that some cats aged 10 and older who stay in excellent condition may be treated as mature adults at the vet’s discretion.

How often should my cat see the vet?

The task force recommends at least one examination a year for every cat, and at least every 6 months for senior cats. Senior cats with chronic conditions should be seen more often than that. Your vet may suggest more visits for your cat.

Is dental cleaning without anaesthesia suitable for cats?

The guidelines say it is not appropriate, because of patient stress, injury, the risk of aspiration and the lack of diagnostic capability. They add that it only cleans the visible surface of the teeth, which can give owners a false sense of benefit. Ask your vet about your cat’s dental care.

Sources

• Quimby J, et al. (2021). 2021 AAHA/AAFP Feline Life Stage Guidelines. J Am Anim Hosp Assoc 57:51-72. https://www.aaha.org/wp-content/uploads/globalassets/02-guidelines/feline-life-stage-2021/2021-aaha-aafp-feline-life-stage-guidelines.pdf
• AAFP. Feline Life Stages handout (© 2026 FelineVMA). https://catvets.com/wp-content/uploads/2026/08/FelineVMA_Life-Stages.pdf
• Dhaliwal R, et al. (2023). 2023 AAHA Senior Care Guidelines for Dogs and Cats. J Am Anim Hosp Assoc 59:1-21. https://www.aaha.org/wp-content/uploads/globalassets/02-guidelines/2023-aaha-senior-care-guidelines-for-dogs-and-cats/resources/2023-aaha-senior-care-guidelines-for-dogs-and-cats.pdf
• Raj K, et al. (2021). Epigenetic clock and methylation studies in cats. GeroScience 43:2363-2378. https://doi.org/10.1007/s11357-021-00445-8