PetMD Seal

Urinary Tract / Kidney Stones (Calcium Phosphate) in Dogs



As there is no effective medications available for this type of stone, dissolution of the stone is the mainstay of treatment. Surgery may be required to remove the stones from the urinary tract, especially in cases in which other procedures cannot be used.


In some cases, the stones can be pushed back into the bladder if they are causing urethral obstruction. A technique called urohydropropulsion is often used for this purpose. This technique involves using a special urinary catheter inserted into the urethra to push back the stone into the bladder.


There is also a new technique called extracorporeal shock wave lithotripsy, which is minimally invasive. This technique works by producing shockwaves focused on the stone leading to breakage of the stone and subsequent expulsion through urine.


After removal of stone by either technique, your veterinarian will use appropriate radiographic procedures to verify complete removal of stones. Abdominal x-rays or ultrasound are typically utilized at three to five month intervals to enhance early detection of stone formation to prevent repeat surgery.


It is also important that the underlying cause of the stone formation be treated properly to prevent future episodes from occurring.


Living and Management


Typically, your veterinarian will prescribe a new diet plan for your dog. Such plans will help prevent future episodes from occurring. Likewise, it is important that you do not alter your dog's diet drastically without prior consultation with your veterinarian. 


Related Articles

Xanthine Urinary Tract Stones in Dogs

Xanthine is a naturally occurring by-product of purine metabolism.

Crystals in the Urine of Dogs

Crystalluria is characterized by the presence of crystals in the urine. Crystals form only in urine that is, or recently has been, supersaturated...

Bacterial Infection (Pyelonephritis) of the Kidneys in Dogs

Pyelonephritis is a bacterial infection of the renal pelvis, the funnel-like part of the ureter in the dog's kidney.

Particles in the Urine in Dogs

Cylindruria is a medical condition characterized by an abnormally high amount of particle matter (casts) in urine sediment. This may indicate...