Does avodart permently shrink the prostate or must I continue taking avodart the rest of my life?

you for your reply to my question but now i have one more. what is TURP?

Transurethral resection of the prostate (TURP) involves surgical removal of the inner portion of the prostate, where BPH develops. It is the most common surgical procedure for BPH, although the number of procedures has dropped significantly over the past decades because of the availability of effective medications.
Procedure. TURP usually requires a 1 - 3 day hospital stay. The surgeon inserts a fiberoptic endoscope, which is a thin tube, into the urethra. No incision is needed. The surgeon uses the endoscope to cut away excess prostatic tissue, and water solutions are used to flush away the excised matter. When meds don't work well, or there are other problems, TURP is the answer. It has a few risks, but, it is I understand a reasonably safe option. There are others, using lasers, radio frequency cutting and so on, but, TURP is the best option usually. The other options are less invasive, but not as permanent and effective. 10% of those who have TURP have it again in 15 years, but, for most, it's a done deal for life.