When Does My Pet Become a Senior?
This is one of the most common questions we hear, and the answer surprises most owners. Pets become "senior" earlier than you'd think, and it isn't the same for every animal. It depends on species, size and breed.
As a general guide for dogs, who reach their senior and geriatric years earlier the bigger they are:
| Dog size | Senior | Geriatric |
|---|
| Small breedsUnder 9 kg | 10-11 yrs | 12-14 yrs |
|---|
| Medium breeds9 to 23 kg | 8-9 yrs | 11-12 yrs |
|---|
| Large breeds23 to 41 kg | 7-8 yrs | 10-11 yrs |
|---|
| Giant breedsOver 41 kg | 5-6 yrs | 8-9+ yrs |
|---|
Cats are generally considered senior from around 7 years, though at Great Western Animal Hospital we start senior care from about 10, and many go on to enjoy a long geriatric stage, with plenty living to 15 or beyond.
The key takeaway: bigger dogs age faster, so a Great Dane or Mastiff reaches its senior years long before a Jack Russell of the same age. Whatever the label, we recommend beginning twice-yearly health checks from around age 10 for most dogs, and earlier for large and giant breeds, whose senior years start sooner, as this is when age-related conditions begin to appear. If you're not sure which stage your pet is at, just ask our team.
Is your pet entering their senior years?
This is the ideal time to begin twice-yearly health checks, even if they appear completely healthy.
Why "Slowing Down" Is Not Just Old Age
It's easy to assume a pet who's less playful, sleeping more or struggling with the stairs is "just getting old." But this is one of the most common and costly mistakes owners make. Very often, there's a treatable medical condition behind these changes, and the earlier we find it, the more we can do.
A sudden change is an obvious reason to see us. But even a slow, gradual decline can be caused by a medical issue that's quietly progressing. Don't wait for it to get worse.
Changes worth booking a check for include:
- Reluctance to play, jump or climb, or difficulty rising
- Sleeping more, or restlessness and pacing at night
- Drinking or urinating more than usual
- Appetite changes, such as eating more, eating less, or losing weight
- Toileting accidents or changes in litter box or house habits
- Reduced grooming, a greasy or unkempt coat, or bald patches
- New lumps, bad breath, coughing or laboured breathing
- Irritability, anxiety, confusion, or "forgetting" familiar routines and commands
In cats especially, these signs are easy to miss. Cats are masters at hiding discomfort, so a "grumpy" cat who's lost their spark, or a normally sweet cat who's suddenly cranky, is often telling us something is wrong.
Don’t wait for obvious symptoms.
A check every six months helps us identify subtle changes in weight, mobility, blood pressure, dental health and organ function before they become more serious.
What's Included in a Senior Health Check
Our senior consultations are far more than a standard check-up. Each visit is tailored to your pet's age, breed and lifestyle, with a focus on early detection and proactive care. Because we're a Fear Free practice, we also work to keep the visit calm and low-stress, which matters even more for older pets.
At every six-monthly senior check, we'll perform:
- A comprehensive physical examination: eyes, ears, teeth, joints, skin, coat, heart, lungs and abdomen
- A weight and body condition assessment, because maintaining a healthy weight is one of the most important factors in supporting a long, comfortable life.
- A conversation about the things you've noticed: appetite, mobility, behaviour, toileting and lifestyle changes at home
- Blood pressure and eye pressure testing (gentle and non-invasive)
Once a year, we also recommend blood and urine testing to assess kidney, liver, thyroid and metabolic health. These tests reveal what a physical exam can't, picking up conditions like kidney disease, diabetes and thyroid problems before any symptoms appear. Together, six-monthly health checks and annual blood and urine testing give us the best possible picture of your pet’s health as they age.
Why every six months?
Senior pets can experience meaningful health changes in a relatively short time. Seeing your pet twice a year helps us compare results, identify emerging concerns and adjust their care sooner.