Risk factors for vaginal wall prolapse are Age Obesity Vaginal delivery Chronic straining (eg, due to constipation or heavy lifting) Severity of vaginal wall prolapse can be graded by the Pelvic Organ Prolapse-Quantification (POP-Q) system: Stage 0: No prolapse Stage I: Most distal prolapse is more than 1 cm above the hymen Stage II: Most distal prolapse is between 1 cm above and 1 cm below the hymen Stage III: Most distal prolapse is more than 1 cm below hymen but 2 cm shorter than total vaginal length Stage IV: Complete eversion The POP-Q system is recommended by professional organizations because it is a reliable and reproducible classification system that is based on predefined anatomic landmarks.