There are four reasons why dogs suffer from urinary stones. One is the weather environment. In hot weather, the water in the dog's body is lost through sweat and the urine is reduced. At this time, stones are easy to form; the other is drinking water problems. , if the dog does not like to drink water, it will cause the urine to decrease and form stones; the third is the food problem. If the owner feeds liver, lean meat and other very high protein foods, this will reduce the intake of phosphorus and calcium. The content of phosphorus in the serum and urine is too high, which can easily lead to stones; the fourth is urinary system infection. When the urinary system is invaded by bacteria or the dog lacks vitamins or estrogen, the epidermis on the dog's urethra will It will fall off and casts will form, forming stones.