Abstract: Pelvic floor dysfunction (PFD) is a kind of disease which is caused by the defects of the pelvic floor support structure. Pelvic organ prolapsed (POP) is an important part of PFD, the main clinical manifestations is the position of pelvic organs descent and the function abnormal, it can seriously affects the physical and mental health of adult women. It is necessary to study the mechanism of POP in female pelvic floor, which under the neural control, attached to the bony pelvis. It is a complex three-dimensional arrangement of muscle connective tissue and organs. Scholars use all kinds of physical examination and auxiliary examination to explore the anatomy and function of the pelvic floor, such as POP-Q score, ultrasound, defecography and magnetic resonance imaging (MRI). In recent years, the dynamic and static magnetic resonance imaging has the advantages of high resolution of flab, no radiation, multi planar imaging, no bone artifact interference etc, and has wide application prospect in the three-dimensional reconstruction of pelvic floor. Compare the advantages and disadvantages of magnetic resonance imaging with other methods in female pelvic floor imaging. Review the testing methods, application status and development prospects of magnetic resonance imaging in studying female pelvic floor diseases.

Key words: Pelvic floor, Magnetic resonance imaging, Prolapse, Urinary incontinence, stress