Bladder and kidney stones (uroliths) cause significant pain in affected dogs and can lead to life-threatening urinary obstruction. Understanding stone types guides effective prevention and treatment.
Urolithiasis causes significant pain across the spectrum from mild discomfort with small stones to acute agony with urethral obstruction. Stones in the bladder cause dysuria — painful, difficult urination — with each voiding attempt painful. As stones grow or move toward the urethra, the severity increases. Complete urethral obstruction causes bladder distension that becomes rapidly life-threatening and intensely painful. Male dogs are at far greater risk of obstruction than females due to anatomy. The welfare burden of recurrent stone disease — repeated episodes of pain, multiple veterinary visits, and the anxiety of owners — is significant. Prevention through dietary management and monitoring, once the stone type is identified, can dramatically reduce recurrence and spare affected dogs repeated painful episodes.