The Role of the Microbiome in Endometriosis.

Endometriosis is a chronic gynecological disease characterized by the presence of endometrial-like tissue outside the uterus, leading to pain and infertility. Recent research has highlighted the important role of the microbiome in various health conditions, including endometriosis. The aim of this review is to examine the central role of the microbiome in the development and treatment of endometriosis. Key findings include the influence of the gut microbiota on estrogen metabolism, whereby certain bacteria can increase estrogen levels and systemic inflammation and exacerbate endometriosis. Changes in the vaginal and endometrial microbiota are also associated with the disease, as they influence inflammatory and estrogen-dependent metabolic pathways. Dysbiosis in various microbiomes can affect inflammatory pathways, with a shift in the vaginal microbiota to the upper reproductive tract affecting endometriosis without symptoms. Probiotic interventions show promise in restoring a healthy microbiota and improving outcomes, with clinical trials demonstrating the efficacy of lactobacilli-based medications for pain relief. In addition, diet and lifestyle changes can directly impact the gastrointestinal microbiome, reducing inflammation and potentially influencing endometriosis. Future research should focus on establishing comprehensive microbiome profiles, mechanistic studies and longitudinal studies to discover new therapeutic targets and improve clinical outcomes for women with endometriosis.