Transvaginal Sacrospinous Hysteropexy Versus Laparoscopic Uterine Lateral Suspension

Inclusion Criteria: * older than 21 years old. * uterine prolapse stage 2 at least, defined by C point distal to -1cm by POP-Q system. * patients willing to receive a uterine-preserving surgery for pelvic organ prolapse, and is suitable for anesthesia after evaluation. * patients who had or had not received conservative treatments for pelvic organ prolapse. * patients able and willing to finish the questionnaire evaluation. Exclusion Criteria: * patient who had received a previous hysterectomy, or is planning on concomitant hysterectomy in the surgery for pelvic organ prolapse. * patient who had received a previous surgery for pelvic organ prolapse. * patient with history of adverse events following a synthetic mesh. * patients with chronic or acute pelvic pain. * patients who had received abdominal or pelvic irradiation. * patients who cannot receive either surgery due to comorbidity. * patients pregnant or with future plan of pregnancy. * patients with vaginal length less than 5cm.