The PSA test is used to find out whether or not the cancer is coming back. It could be that your cancer became more aggressive In a short amount of time. How much time was it between getting the 4.3 PSA and the previous test, Three months, six months? The doubling rate is what they go by to figure out how aggressive what you have is.

After surgery, the results can be all over the place. One of the meetings I attend had somebody show up who had it reoccur 30 years after surgery with a Gleason nine. Other people with a nine have metastasis show up quickly and have to move on to new drugs very soon after surgery. Going on ADT after surgery can put off that return of the cancer. With a Gleason nine they recommend you go a couple years with ADT.

There is no constant that you will tell you how long it will be everybody is different.