Gallbladder disease in dogs is not that common and presents itself in middle aged on. Sometimes it can be cured with surgery. The surgery is intricate and involves many risks that shouldn’t be taken lightly. There are times when it is managed with medication. The possibility of a ruptured gallbladder can result at any time if surgery is contraindicated. Each dog is different and treatment pros and cons should be weighed very carefully.
The first and most important thing is to get a proper diagnosis. In the case of this dog, it took a few months of finding the proper specialist and testing. This informative link may help understand this disease a little more.