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By Mayo Clinic staffTransurethral microwave therapy (TUMT) is an outpatient procedure to treat urinary symptoms caused by an enlarged prostate. With TUMT, your doctor inserts a small microwave antenna attached to a flexible tube (catheter) through the tip of your penis. The catheter extends through the tube that carries urine from your bladder (urethra) to part of the prostate that's blocking urine flow. TUMT uses an antenna to emit a dose of microwave energy that heats up and destroys excess prostate cells.
TUMT is one of several alternatives for treating an enlarged prostate, a condition also known as benign prostatic hyperplasia (BPH). Other treatments include medications, transurethral resection of the prostate (TURP), transurethral needle ablation (TUNA), laser surgery and open prostatectomy.
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