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On the Day of Your GreenLightTM Procedure

On the day of your procedure, you will come to the treatment center. You should have someone drive you home since this is an outpatient procedure. Keep in mind that different patients may require a different treatment regimen. Here is a general description of the procedure and what to expect:

  1. Before treatment, your physician may give you medication to help you relax during the procedure. You may also receive medication to help you avoid infections.
  2. You may be asked to empty your bladder.
  3. You will be brought into the procedure room and moved into the treatment bed where you will lie on your back. You will be provided anesthesia that will allow you to sleep through the entire procedure. Depending on the treatment center, other types of anesthesia may be used, including spinal block or a nerve block.
  4. Once you are asleep or the anesthesia block takes effect, your physician will insert a cystoscope through your urethra.
  5. The laser fiber is introduced through the cystoscope and advanced into the urethra at the location of the prostate.
  6. The physician systematically vaporizes the enlarged prostate tissue until the obstruction is removed.
  7. At the end of the procedure, the physician may insert a temporary catheter to let urine drain from your bladder.

You may experience mild discomfort, such as slight burning during urination, and trace amounts of blood in your urine for a week or so. Also, depending on the condition of your bladder, you may experience a greater urination frequency and urge to urinate. This will resolve over time as your bladder adjusts to removal of the obstruction in your urethra.

Following the GreenLightTM procedure, you will likely experience immediate improvement in flow and symptoms, but will possibly have mild short-term urgency and frequency or mild pain during urination. Blood in the urine occurs less frequently; however, retrograde or diminished ejaculate volume is common. You may require a catheter for a short time, which is dependent on the physician’s discretion.1


  1. Eure G, Gonzalez R, Alivizatos G, Malloy T, Sandhu J. Creating a new standard of care for BPH: a standardized approach to photoselective vaporization of the prostate using GreenLight HPS™ Laser Therapy. Urology Times. 2009;(suppl):2-11.