When medication doesn't do the job, a number of procedures can remove excess tissue from the prostate, easing obstruction of the urethra. These outpatient procedures are less invasive than surgery and may take no more than an hour. They include transurethral microwave therapy (TUMT) which may require the temporary use of a catheter after treatment. Prostate artery embolization is when a catheter is inserted through the artery through a small puncture in the groin to plug up the artery, blocking blood flow to the enlarged prostate. Water Vapor Therapy uses the natural energy stored in water vapor, or steam, to remove excess prostate tissue that is pressing on the urethra. In a prostate urethra lift procedure (PUL), an instrument is inserted into the urethra to separate the enlarged prostate lobes to widen the urethra wider, so that it is easier to urinate. Photoselective vaporization of the prostate (PVP) uses a cystoscope with a laser inserted into the penis to burn away excess tissue blocking urine flow through the prostate.