Phytotherapy in urological benign disease: A systematic review

What is the state of knowledge on the use of phytotherapy in the following urological benign diseases: prostatic hyperplasia, erectile dysfunction, male infertility, urolithiasis and low-urinary tract symptoms? Supplements derived from natural products are used in medicine alone or in combination with drugs. In urology, there are many products used for symptom management in benign conditions. The aim of this review was to investigate the use of herbal medicines to treat benign urological diseases. A systematic review was conducted using the PubMed, CINAHL, Cochrane Library, Embase and Scopus (2010–2021) databases. The inclusion criteria were studies describing the use of phytotherapeutic strategies to treat adult patients with urological diseases. Quality assessments were performed using the Grades of Recommendation, Assessment, Development and Evaluation (GRADE) approach. Nineteen studies were included in this systematic review: 13 randomized controlled trials, 3 pilot studies, 1 quasi-experimental study, 1 retrospective observational study and 1 post hoc analysis. Phytotherapeutic agents used to treat benign prostatic hyperplasia included royal jelly, Viola odorata, Echium amoenum, Physalis alkekengi, soy isoflavones, Serenoa repens, Trigonella foenum-graecum, lycopene and selenium. Tribulus terrestris is widely used to treat erectile dysfunction and male infertility. Lycopene, Korean ginseng berries, Indian ginseng and Curcuma improve sperm characteristics and motility. Lupeol therapy reduces kidney stone size, improving urolithiasis symptoms and accelerating the expulsion of small stones. No standard of care has been established for the use of phytotherapeutic agents to manage patients with symptomatic urological disorders. Although randomized controlled trials were the most common study type in our review, the sample sizes were limited, and the study duration and follow-up periods were often very short.