Rezum is a minimally invasive surgical procedure, which uses hot steam to effectively reduce the enlarged part of the prostate responsible for urinary obstruction. Benign prostate hyperplasia (BPH) refers to the enlarged portions of the prostate near the urethra, which courses through the prostate connecting the bladder to the more distal parts of the urethra. Rezum is done under sedation and requires the placement of a scope into the urethra and bladder. The scope is equipped with a small retractable needle attached to a steam-generating unit. Under direct vision, the surgeon places the needle into the enlarged portion of the prostate and administers 10 seconds of hot steam into the BPH nodule. Between 2 and 4 areas are treated on each side of the prostate. Steam denatures the protein structure of the enlarged prostate causing it to shrink away from the urethra and relieve the obstruction. The initial response is swelling and requires the placement of a temporary catheter into the bladder, which the patient is discharged to home with on the same day as the procedure. It is removed in 3-7 days.

Risks of Rezum are modest but include bleeding or infection in a small number of patients. Erectile dysfunction is not a known risk of Rezum. It is effective in about 80% of patients.

When should I seek advice from my physician?

You should contact your physician if you develop any of the following:

  • You have blood clots in your catheter that are interfering with the flow of urine. Small clots passing through the catheter are common and should resolve with extra water intake.
  • You have a fever over 100.5 F. Antibiotics are usually given for infection prevention while the catheter is in place.
  • You have pain that is not easily controlled with Ibuprofen or Acetaminophen.