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Tension or Temperature. Dogs may shake as a way of relieving tension. If a dog is feeling nervous or uncomfortable in a situation, it might shake the whole body as a way of shaking out tension. This behavior also may function as a means of getting attention from other dogs or people.
There are few things sadder than the sight of a trembling dog. Itâs a common occurrence in the veterinary waiting room, grooming parlors, and even dog parks. Wherever stress happens, shaking and trembling do, too. But that doesnât mean itâs the only reason for this physiological reaction.Though stress or anxiety are certainly common reasons for shaking in dogs, there are other causes worth noting. Muscle weakness is a biggie.Dogs who exhibit localized shaking of the rear legs may be experiencing muscle weakness, especially if it resolves when the dog has had a chance to rest.hough stress or anxiety are certainly common reasons for shaking in dogs, there are other causes worth noting. Muscle weakness is a biggie. Dogs who exhibit localized shaking of the rear legs may be experiencing muscle weakness, especially if it resolves when the dog has had a chance to rest.