Dogs that are unsteady, twitching and trembling may be caused by epilepsy, canine distemper, worms, heart disease, brain damage, infection, poisoning, metabolic abnormalities, high fever, calcium deficiency, timidity and other reasons. If a dog is deficient in calcium and will tremble and have weakness in its limbs, it is recommended that the owner supplement the dog with calcium supplements specially designed for pets.

After a dog suffers from canine distemper, it will appear listless, weakened, trembling and convulsing. It is recommended that the owner consult a pet doctor for treatment in time. If the dog's leg is injured, a strong pain reaction will cause the dog to have the above symptoms, so it is recommended to undergo a DR examination.