Transurethral microwave therapy (TUMT) is an outpatient procedure to treat urinary symptoms caused by an enlarged prostate, a condition known as benign prostatic hyperplasia (BPH). It's used less often now than it was in the past and has generally been replaced by newer treatments.
During TUMT, a small microwave antenna is inserted through the tip of your penis into the tube that carries urine from your bladder (urethra). Your doctor extends the antenna until it reaches the area of the urethra surrounded by the prostate. The antenna emits a dose of microwave energy that heats up and destroys excess prostate tissue blocking urine flow.
TUMT is one of several options for treating an enlarged prostate. To determine the right treatment choice for you, your doctor will consider how severe your symptoms are, what other health problems you have, and the size and shape of your prostate.