Rezum: a new transurethral water vapour therapy for benign prostatic hyperplasia.

Rezum is a minimally invasive transurethral water vapour therapy for benign prostatic enlargement which uses thermal energy for treatment. The short-term results show it to have good outcomes with a potential for outpatient-based treatment preserving sexual function. This review serves to provide an overview of the technique and evaluate its safety and efficacy.