There are many problems that can affect a dog’s lower urinary system. Incontinence, bladder stones or crystals in the urine, bacterial infections, cancer, trauma or even obstruction of the urethra, the tube that allows urine to pass from the bladder to the outside of the body, can occur. What Causes Lower Urinary Tract Problems in Dogs?
https://pets.webmd.com/dogs/guide/lower-urinary-tract-problems-infections-dogs

