Transvaginal mesh (also known as pelvic mesh or vaginal sling) litigation represents one of the largest mass tort actions in U.S. history. It involves claims by tens of thousands of women who suffered severe, often permanent injuries from synthetic polypropylene mesh implants used to treat stress urinary incontinence (SUI) and pelvic organ prolapse (POP). These devices were intended to provide support to weakened pelvic tissues but frequently led to debilitating complications, resulting in massive settlements and verdicts against major manufacturers.