Causes of Bladder Stones in Dogs

Many factors contribute to the forming of bladder stones in dogs. Bladder stones form from minerals which first appear as microscopic crystals in the urine. When the crystals unite, small grains of sand are formed and gradually build up into stones.

Dogs who repeatedly have urinary tract infections should be evaluated for bladder stones. It becomes a life-threatening situation if a bladder stone becomes lodged in the urethra, causing a blockage.

Causes of Bladder Stones in Dogs

A genetic predisposition is always a factor with any disease or condition. Defects of the kidney may form oxalate type stones. Schnauzers seem to be predisposed to a defect which causes stone formation. Dalmatians have a defect in metabolism which may causes urate stones to form.

Bacterial infections play a major roll because they tend to make the urine more alkaline which is the most favorable condition for mineral formation.

Your dogs diet may be a factor in bladder stone formation. Excessively high levels of protein in the diet add to the formation of ammonium and carbon dioxide which is part of the process of stone formation. This is an issue for all-meat diets and would not be a factor in most dogs eating commercially prepared foods.

Some dogs may develop stones if they have a parathyroid gland tumor or another type of cancer present.