Q. Our 10 yr old Springer has developed tremors at random intervals. She shakes all over, with these lasting from 2 to 10 minutes.
DR. CHRISTIE LONG, D.V.M., C.V.A.
A. We do recognize that there is likely something causing tremors in the rear legs of geriatric dogs, but we don't understand what it is. The term for this is "idiopathic", and it's observed in multiple breeds (usually medium to large breeds). Sometimes these dogs have low thyroid levels, so I would recommend testing for that (with a full thyroid panel measuring ALL of the thyroid values). But as Dr. Pusateri points out below, other more serious things, such as disease involving the brain, should be considered and ruled out first before it's assumed to be a "normal" aging change.
DR. LEIGH PUSATERI, DVM
A. She may be having mild seizures. Have her examined by a veterinarian to determine the cause and best treatment. Your vet can run labwork to help diagnose. She could have an infection, metabolic disease, endocrine disease, or a mass.