Prostate adenoma, also known as benign prostatic hypertrophy or hyperplasia (BPH), involves an increase in the size of the prostate, forming a benign tumor. It is the most common benign tumor in men, generally affecting those over 40 years old. The risk of BPH is more than 50% in men aged 50 to 60 and rises to 90% in men by age 80. This hyperplasia leads to altered urinary flow and bladder outlet obstruction, referred to as lower urinary tract symptoms or LUTS, which become more frequent with age. These symptoms are categorized as obstructive or irritative. In the early stages, men with BPH may have difficulty starting urination and may feel as if their bladder is not completely empty. As a result, they need to urinate more often, especially at night, a condition known as nocturia. Additionally, the volume and velocity of the urinary flow may decrease significantly, as evidenced by flow measurements, and residual urine discharge may occur at the end of urination. High-intensity focused ultrasound (HIFU) is a medical technique that uses high-intensity ultrasonic waves to treat various medical conditions, including malignant and benign tumors, without the need for invasive surgery or ionizing radiation. HIFU generates heat between 80° to 95°C at the focal point, causing necrosis of the targeted area with pinpoint accuracy. In urology, HIFU is used to treat prostate cancer in a minimally invasive manner, with focused ultrasounds delivered endorectally using a transducer that targets the treatment area with real-time monitoring. Exclusively targeted HIFU treatment has been suggested for BPH, where localized necrosis of the side lobes reduces the volume of the prostatic transition zone, alleviating compression of the prostatic urethra and improving urinary symptoms. This new study was initiated to evaluate the safety and efficacy of HIFU for BPH treatment.