Complications and satisfaction with anterior and/or posterior prolapse repair using a transobturator polypropylene mesh (Prolift) in a single center prospective cohort was assessed. Among 30 women six mesh erosions were noted, five (17%) after anterior and one (3%) with combined anterior and posterior procedures. The patients' impression after six months was 'better' to 'much better' in 25 (84%), no change in four (13%) and one was worse (3%). At six months one patient had suffered re-appearance of an anterior prolapse and one had relapse of both an anterior and posterior prolapse. Concomitant procedures were not significantly related to risk of erosion, but the erosion group was younger (mean age 58 vs. 67 years, p<0.0001). After polypropylene transobturator mesh for pelvic organ prolapse relapses do occur. Safety may be hampered by a high rate of mesh erosions.