The role of obesity on urinary incontinence and anal incontinence in women: a review.

Obesity prevalence is increasing worldwide, with significant healthcare implications. We searched PubMed/MEDLINE, Embase and the Cochrane Library for articles registered until June 2020 to explore the relationship between obesity and urinary (UI) and anal incontinence (AI). Obesity is associated with low-grade, systemic inflammation and proinflammatory cytokine release, producing reactive oxygen species and oxidative stress. This alters collagen metabolism and, in combination with increased intra-abdominal pressure, contributes to the development of UI. Whereas in AI, stool consistency may be a factor. Weight loss can reduce UI and should be a management focus; however, the effect of weight loss on AI is less clear.