Thanks for the additional information.

Based on what you are describing she definitely sounds like she is having urinary incontinence. This is a common disorder to see in female spayed dogs. When female dogs are spayed we take away the estrogen hormone from them. Estrogen is needed to help keep the sphincter or valve that holds off the urinary bladder. Without the estrogen hormone gone this valve gets weaker over time which can cause urine to leak out. Most of the time dogs leak urine when they are resting or sleeping because they do not have any control of their bladder at these times.

The good news is that this disorder is treatable with medication alone. The two main medications used are:

Phenylpropanolamine (PPA) and Diethylstilbestrol (DES). Both are relatively safe though PPA can cause side effects in dogs with blood pressure issues, kidney or liver disease. I actually prefer DES because I have never seen any side effects if the medication is used properly. Most vets will use DES every day for about 5 days and then decrease the dose to once or twice a week to keep the symptoms under control.

http://www.petplace.com/drug-library/diethylstilbestrol-des/page1.aspx/
http://www.petplace.com/drug-library/phenylpropanolamine/page1.aspx

Incontinence is very likely though I would always recommend having your vet check a urine sample and possibly some blood work if they have not done this recently to make sure there are no signs of an infection, kidney disease, or bladder stone that could also be the cause of her symptoms.


Hope this helps -please feel free to reply if you have any other questions. If you are satisfied with my answer please do not hesitate to click on the "excellent service" button as this will compensate me for my time. Thank you in advance!