What changes are common
Many older dogs show some of these. None of them are certain signs of any one thing, which is why the vet visit matters.
- Slower on stairs, reluctant to jump into the car, stiff after rest. This can come from joint pain.
- Less responsive to your voice or startled when touched. Hearing or vision may be fading.
- Restless at night, pacing, staring at walls, or waking up and seeming lost. Cognitive changes are one possible cause, and so are pain and bladder trouble.
- Accidents indoors after years of being reliable.
- Irritability, growling when approached while resting, or avoiding other dogs.
- Barking or whining for no clear reason.
- Less interest in play or walks.
Canine cognitive dysfunction is a real condition in older dogs, something like dementia in people. Your vet can discuss it, and there are management options. Do not assume that is the cause until other problems have been ruled out.
Changes that are easy to miss
Some changes sneak up. Your dog may stop greeting you at the door, which feels like affection fading but may be stiff hips. They may avoid the stairs they used to bound up. They may lick a paw or a spot on their body more often. They may stop eating hard kibble because their teeth hurt. They may drink more water than usual, which is worth a vet call. Keep a short log for two weeks and bring it to your appointment. Patterns tell a vet more than a general worry does.
Senses fade slowly, and dogs hide it well. Test gently. Does your dog respond to a quiet clap behind them? Do they bump into furniture in a dim room? These tiny tests do not replace an exam, but they give you something concrete to share.