Senior dogs
Why does my senior dog pant more than he used to?
Last updated 23 September 2026 · How we write and check this
Short answer
Increased panting in a senior dog can reflect normal factors like reduced heat tolerance, less efficient temperature regulation, or mild discomfort from joint stiffness affecting how a dog lies down or moves around each day and night at home comfortably and calmly. It can also signal pain more broadly or, less commonly, a health condition affecting breathing or heart function, so panting that seems excessive, happens at rest, or comes with other symptoms deserves a vet visit.
Why heat regulation becomes less efficient with age
Older dogs often struggle somewhat more to regulate body temperature efficiently than they once did as younger, more resilient animals, meaning a temperature that felt comfortable in younger years might now prompt more panting to cool down. This is particularly noticeable in warmer weather or after even moderate activity that would not have caused much panting at all a few years earlier.
Panting as a sign of discomfort
Panting is a recognized general sign of discomfort or pain in dogs, so a senior dog panting more than usual, particularly at rest or during the quiet night, may be signaling joint pain or general physical discomfort rather than simply feeling warm. Watching for other accompanying signs, such as restlessness or reluctance to settle, helps build a genuinely fuller picture.
When increased panting needs a vet visit
Mild, occasional increased panting linked clearly to heat or activity is usually not concerning on its own at all. Panting that happens at rest in a cool environment, seems excessive or labored, or comes alongside other symptoms like coughing, lethargy, or reduced appetite is different and deserves prompt veterinary attention rather than being attributed to normal aging alone. Noting exactly when panting occurs, and for roughly how long, gives your vet a much clearer picture to work from during an examination.
Key takeaways
- Reduced heat tolerance and less efficient temperature regulation are common, normal causes of increased panting.
- Panting is a recognized general sign of pain or discomfort, not just heat, in dogs.
- Watch for accompanying restlessness or reluctance to settle as additional clues.
- Panting at rest, labored breathing, or panting with other symptoms warrants a prompt vet visit.