there are different reasons why this could be happening. Here are some:
The most common form of urinary incontinence is estrogen-responsive incontinence - a condition affecting some spayed females. The common complaint regarding this form of incontinence is leaking of urine while your pet is resting or sleeping. Estrogen depletion, resulting from ovary removal during spaying, apparently causes weakness of the urinary sphincter. Veterinarians treat this disorder with estrogen supplementation or phenylpropanolamine (PPA).
Another possible cause of incontinence is trauma to the brain or spinal cord. Depending on the degree of nerve damage, a dog with such a condition may dribble urine intermittently or constantly. Most dogs with neurologic incontinence also exhibit other nerve-related maladies, such as loss of coordination.
It’s important to quickly diagnose and treat any form of urinary incontinence. Chronic exposure to urine can cause secondary complications such as skin ulcers, especially in dogs that are immobilized.
Indoor accidents can occur when a dog has a medical condition that generates more than the usual amount of urine. Cushing’s disease, diabetes mellitus (sugar diabetes), bladder stones, liver disease, and chronic kidney failure are several examples. In Cushing’s disease, the adrenal glands produce excess cortisol, which blocks the action of antidiuretic hormone and thus stimulates the kidneys to increase urine output. In diabetes mellitus, the pancreas produces insufficient insulin, the hormone that transports glucose into cells. Glucose then builds up in the blood, and the kidneys excrete excess glucose in large volumes of urine. Dogs with chronic kidney failure also produce large amounts of urine because their kidneys can’t properly channel water back into the bloodstream.