What is a common sign of kidney disease in dogs that may be noted during a physical exam?

In dogs, a common sign of kidney disease that may be noted during a physical exam is increased thirst and frequent urination. This condition, known as polydipsia and polyuria, occurs because the kidneys are unable to concentrate urine effectively. As a result, the dog drinks more water to compensate for the increased urine output, leading to excessive thirst.

In addition to these signs, other manifestations of kidney disease may include changes in appetite, energy levels, and possible weight loss, but the combination of increased thirst and urination is particularly indicative of kidney dysfunction. It's essential for veterinarians to recognize these clinical signs during physical examinations to assess renal health and guide further diagnostic testing and treatment options.