Usually, a pet with a bladder stone or urethral stone strains to urinate, however, which is not a common sign in an incontinent dog. A bladder stone is unlikely to cause urine incontinence, but if small stones get trapped lower down the urinary tract in the urethra, this could cause urine to inappropriately dribble, and again any stones can be an underlying cause for a bladder infection.
Kidney stone or bladder stoneĪ kidney stone itself will not cause incontinence but the stone may act as a platform for infection to take hold and it will be the urinary infection that can cause urine leakage. Having a urinary tract infection in the bladder (‘cystitis’) and /or kidney infection (‘pyelonephritis’) can certainly cause signs of inappropriate urine leakage and sometimes bloody urine. So why is my dog leaking urine?Ī female dog may leak urine for one of several reasons: Cystitis This resistance is provided by the smooth and skeletal muscle in the urethra, natural elasticity in the urethral wall and by engorgement of small blood vessels beneath the surface of the urethra.īy a complex sequence of nerve conduction, muscle contraction and relaxation, the bladder muscle contracts, the bladder neck and urethra containing muscle sphincters relax allowing urine to flow to the outside.
The bladder slowly stretches to accommodate the urine collected and the urine is prevented from leaking into the urethra by the resistance in the urethra. Urine is then stored in the bladder until the pet makes a conscious decision to urinate. The urethra is the tube joining the bladder neck to the outside. Urine is made in the kidneys and passed down to the bladder via two tubes called the ureters.
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