Trans-Urethral Microwave Therapy (TUMT) of the Prostate


TUMT is Trans-Urethral Microwave Therapy which is done to help relieve the symptoms of an enlarged prostate or Benign Prostatic Hyperplasia (BPH). TUMT is an option for men who want more than medications for treatment of their symptoms.

What is Microwave Therapy?

The Thermatrix System of thermodilatation therapy is the latest generation in microwave therapy for treating BPH. In addition to the utilization of heat to reduce the prostate tissue from impeding flow, it also utilizes pressure to compress this tissue which will also reduce the narrowing caused by the excessive prostate tissue.

What happens during the procedure?

Local anesthetic is introduced and then a flexible catheter is passed through the urethra by your urologist. The catheter contains a microwave coil that delivers heat to the prostate. It also contains a pressure balloon that will be inflated following insertion of the catheter to apply pressure to the prostatic urethra and dilate the urethral opening. This catheter will be connected to a computer operated system that will control both the microwave wattage and pressure generated during your treatment. A probe will also be placed rectally to monitor your body temperature. The actual treatment time varies from 20-45 minutes.

What happens after the treatment?

At the end of the procedure, a small catheter will be placed to drain urine from your bladder for a few days. During this time, you will need to take it easy. Once your physician determines that the catheter may be removed, you will be free to resume your normal day-to-day activities.

Pre-Operative Instructions

1. Limit your intake of fluids on the day of the procedure.

2. Be sure to eat something on the day of your procedure.

3. A Fleets enema the evening prior to the procedure is advised.


1. You may take all your daily medications unless otherwise indicated by your physician.

2. Aspirin products should be discontinued as directed by your doctor. If blood thinners are taken, discuss with your internist before you discontinue this medication 7-10 days prior to your procedure.

Special Instructions

1. You must make arrangements for transportation to and from the procedure. You may not drive yourself

2. Wear loose fitting clothing to your procedure. Be sure to wear brief-style underwear.

3. A catheter will be placed in your bladder for approximately 5 days. Do not attempt to remove it yourself.

4. Reduce the amount of alcoholic or caffeinated beverages and tobacco products 48 hours prior to your procedure.

5. A Fleets enema should be performed at least 2 hours prior to the procedure.

6. You will be given an oral antibiotic prior to the procedure.

Post-Operative Instructions


You may resume a normal balanced diet following the procedure. Increase your water intake to re-establish and maintain proper hydration and flush the urinary tract.


Please take it easy for a few days. You should refrain from any strenuous activity until the catheter is removed.

Catheter Care

Your bladder will be drained through this small flexible tube for the next few days. The catheter has been placed through your urethra to your bladder. You do not have to do anything to urinate; the catheter will automatically drain urine from your bladder into the drainage bag. If you do not see any urine draining into the bag, call your physician’s office immediately. Leakage around the catheter is normal.

You may want to put some tissue or padding in your undergarments to capture this drainage. You will need to change this tissue periodically.

Follow Up Appointment

You will be provided with a follow up appointment for the removal of your catheter and to check on your post-operative condition. Drink plenty of water the day of your follow up visit!


You will be given a prescription for an anti-inflammatory and an antibiotic. Please take them as directed. Significant pain following this procedure is unusual so pain medication will not be routinely prescribed. If you do develop significant pain, please contact our office.

Post-Surgical Expectations

After your procedure, you can expect some or all of the following conditions:

  • Current symptoms should improve gradually over the next 6-8 weeks.
  • Minor discomfort (soreness) in your abdomen or sitting may be uncomfortable.
  • Bloody discharge from your penis.

Contact Physician Immediately if:

  • You have pain more severe than can be controlled by over-the-counter analgesic medication or prescribed pain medications.
  • You have fever of greater than 101ºF.
  • You experience chills or shaking.
  • There is evidence that the catheter is not draining urine or there is constant leakage around the catheter.
  • Excessive bleeding occurs.