The pelvic floor is a complex group of muscles, ligaments, and connective tissues that supports the bladder, urethra, and surrounding organs. In healthy adults, these muscles contract and relax in coordination to maintain continence. When pelvic floor muscles weaken or become damaged, the support system that keeps the urethra closed during physical exertion is compromised, often leading to stress urinary incontinence.
Urge incontinence involves a different mechanism, where the detrusor muscle of the bladder contracts involuntarily, creating a sudden and overwhelming need to urinate. This overactivity may result from neurological changes, bladder irritation, or disruptions in the signaling pathway between the brain and bladder. Research shows that approximately 25 to 45 percent of adults experience some form of urinary incontinence during their lifetime.
Mixed incontinence, the most common presentation, combines elements of both stress and urge types. The interplay between weakened pelvic floor support and bladder muscle overactivity creates a compounding effect, where each condition exacerbates the other, leading to progressively worsening symptoms without proper intervention.
