One of the most common conditions veterinarians note in older dogs, which may cause them to snap at their handlers, is degenerative arthritis. Degenerative arthritis is usually caused by the accumulated wear-and-tear on the dog’s joints, and the various structures within them, or as a result of a previous injury to a particular joint.

It can be extremely painful for the animal, particularly when the dog has had an unusually active period of exercise, laid down to rest, and attempts to get up again. Watch your dog carefully to see if it shows any signs of trouble getting up after a nap. Also, watch your pet’s gait and make a note of any stiffness or unusual sluggishness when first rising. Often, the stiffness of arthritis will disappear as muscles and joints warm up.

If you see any warning signs in your older dog, your vet may recommend X-rays to examine the internal structures of joints that may be causing the problem.

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