ObjectivePresent work aimed to observe the relativity of expression of decorinand content of type Ⅲcollagen in paraurethral connective tissue, todetect biochemical changes in paraurethral connective tissue, and toexplore whether the alteration in collagen concentration and decorinexpression could contribute to stress urinary incontinence(SUI) andpelvic organ prolapse(POP).

The prevalence of urinary incontinence and pelvic organ prolapse and its effects on the life quality of women in Beijing suburb;

The effect evaluation of the modified pelvic reconstructive surgery for severe pelvic organ prolapse

Retrospective analysis of operation per vagina on pelvic organ prolapse

Objective To study the characteristics of pelvic organ prolapse(POP) and its relationship with stress urinary incontinence(SUI) in women with pelvic organ prolapse by the urodynamic method.

Objective To explore the clinical and urodynamic features of pelvic organ prolapse(POP) and its relationship with stress urinary incontinence(SUI).

To evaluate the distribution of neuropeptide Y(NPY) in the round ligaments、cardinal ligaments、uterosacral ligaments and vaginal epithelium among women with pelvic organ prolapse(POP),stress urinary incontinence(SUI),and control groups to clarify its role in the etiology development of POP and SUI.

MRI study of female normal pelvic floor and pelvic floor prolapsed disorders;