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IntroductionRezum is a minimally invasive, outpatient procedure using convective water vapor to relieve outlet obstruction from benign prostatic hyperplasia (BPH). Evidence on the technical approach of Rezum therapy, particularly pain control, is lacking. The purpose of this study was to evaluate the efficacy of utilizing a local anesthetic prostate block for postoperative pain control during Rezum therapy for BPH. A multimodal approach is typically utilized for pain control during and after Rezum. However, little is known about which elements are most critical. MethodsThis is a single-center retrospective study of 109 patients who underwent Rezum for BPH. Patients were then divided into two groups: Local anesthetic prostatic block verse no local anesthetic prostatic block for the procedure. A phone survey was performed to assess the patients' subjective pain scores and postoperative analgesics usage. A comparison of reported pain scores on a 0-10 Likert scale as well as usage of prescription and non-prescription analgesics medications was performed. ResultsThere were 109 patients who underwent Rezum therapy, and 86 (79%) of patients responded to phone surveys. There was no significant difference in postoperative pain scores between patients who received local anesthetic prostatic block vs those who did not (2.10 vs 3.03). Similarly, there were no significant differences in postoperative narcotics or non-prescription analgesic medications usage. ConclusionOur data suggest that when performing Rezum using conscious sedation in the operating room or cystoscopy suite, it is unnecessary to perform a local anesthetic prostate block as it has no significant effect on patient-reported pain or the use of analgesics in the postoperative period.