Benign prostatic hyperplasia is also commonly called benign prostatic hypertrophy. Both terms are often shortened to BPH. There are several surgical options for treatment of BPH. This video shows interstitial laser surgery. Here's how it works. A urologist inserts a thin device called a cystoscope to view the enlarged prostate. A laser is then inserted through the cystoscope and placed under the surface of the prostate. The laser heats the targeted tissue and destroys it. The prostate shrinks over the next few months, which may allow the urine to flow more freely. There is minimal bleeding, and the procedure doesn't require a hospital stay.