A Gallbladder that doesn't work, doesn't work. It doesn't get better, it gets worse. Stones block ducts and cause pain. Is that what you mean by diseased?

Most bad gallbladders are easily removed. The surgery for removal of the gallbladder is routine and simple most of the time, a laparoscopic procedure. Recovery is days. When there is a lot of infection, though, it can be a more complex surgery, an open surgery. Recovery is 6+ weeks.