Microwave thermotherapy is a treatment method that uses heat to destroy abnormal tissue. It is used to treat benign prostatic hypertrophy (BPH), a condition in which the prostate becomes enlarged due to abnormal growth of the stromal and epithelial cells of the prostate. As a result, the urethra becomes obstructed causing obstruction to the flow of urine and subsequent urinary disorders such as dysuria (painful urination), urinary retention, frequent urination, and urinary tract infection. Microwave energy (heat) is applied to the enlarged prostatic tissue, causing reduction of the enlarged tissue with simultaneous protective cooling of adjacent urethral tissue.
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