What is Urolithiasis?
Urolithiasis is a urinary tract disease in which crystals or stones form within the urinary tract and cause irritation, pain and possibly blockage.
What are urinary bladder stones?
Urinary bladder stones (also known as uroliths) are collections of mineral crystals that combine together to form a stone in the urinary bladder. Less often, stones may form in the kidneys. The pH of your dog’s urine affects the development of the crystals that lead to urinary bladder stones. The most common type of stone/crystal is struvite, and these tend to form in alkaline urine. Other types develop in more acidic urine.
What causes urinary bladder stones?
Though there is no single cause of urolithiasis, or urinary tract disease, veterinarians recognize there are components that may contribute to the prevalence of the disease. Factors, that increase your dog’s likelihood of developing a problem include:
Age: Dogs between the ages of 2 and 10 are most susceptible.
Gender: Both males and females get the disease with equal frequency, but males have a greater risk of life-threatening urethral obstruction from the crystals or stones
Infection: Bacterial infection of the bladder, causing alkaline urine, is the main cause of struvite crystal formation.
Food: You already know the food you feed your dog is extremely important in keeping him healthy. But feeding him the wrong kind of food can cause urolithiasis. High levels of certain minerals in dog food can increase the chance of crystal formation in urine. Magnesium and phosphate are mineral components of the most common crystal type struvite. Don’t feed a dog food with excessive amounts of these minerals. The dog food your dog eats also influences urine acidity (pH). This may encourage certain stones to form, so it’s important to feed a dog food that supports bladder health.
Low water intake: Not taking in enough water leads to more concentrated urine, which may increase the likelihood of stones forming.
Breed Predisposition: Small breed dogs are more susceptible than large breed dogs. Also, certain dog breeds, such as miniature schnauzers, Dalmatians, Yorkshire terriers and bulldogs, are more prone to develop urinary bladder stones.
Other contributing factors can be lack of exercise, inability to urinate frequently (typical in a confined indoor dog), or reduced water intake.
