Why has my greyhound begun to stumble while on our walks?

Its a good idea to get her checked out by a vet. As dogs get older their bones get more brittle just like people's do. So she could have hurt herself. Check to see if she has anything stuck between her paws or in her pads. She sounds to be pretty healthy so taking her to the vet would help her contunue on a healthy long life.

Take her to the vet as you know 11 is is very very good for that breed however she is elderly dog and could be developing a neurological disorder personaly i hope it is just a sprain ===if you have a lot of hard floors you may want to put down carpet runners for her

As a Veterinarian with more than 30 years experience, i would suspect a pinched nerve or bundle of nerves situate ddin the lumbosacral area of the spine,or for arthritic changes of the spine in a syndrome called cauda equina syndrom,usually diagnosedn via x ray study

As a Veterinarian with more than 30 years experience, i would suspect a pinched nerve or bundle of nerves situate ddin the lumbosacral area of the spine,or for arthritic changes of the spine in a syndrome called cauda equina syndrom,usually diagnosedn via x ray study