Calculi formed in the kidneys.
Almost all kidney stones are made up of either calcium salts, uric acid, cystine, or struvite:
Factors involved in the formation of the stones include:
• Increased urinary concentration of crystalloid components. Due to: dehydration, increased rate of excretion of the crystal constituents (a diet high in sugar, processed commercial pet foods, acid foods, for example, that cause the body to lose calcium through the urine).
• Stone formation at normal urinary concentration. Due to: pH changes, urinary stasis, foreign bodies, and the decrease in normal protective means against stone creation.
signs and symptoms:
Wet spots on bedding or in areas dog ay have been laying, sitting or sleeping in.