what causes pelvic prolapse
Pelvic organ prolapse is caused by the failure of weakened or injured muscles and connective tissue in a woman's pelvis. The pelvic muscles and connective tissue stretch or break, allowing a pelvic organ, such as the uterus, cervix, bladder, urethra, rectum, or small intestine, to push through to the vaginal canal.
Pelvic organ prolapse can also occur after surgical removal of the uterus (hysterectomy) for another health problem, such as endometriosis. Removal of the uterus can sometimes leave the other organs in the pelvic area with less support. Other conditions that may cause pelvic organ prolapse include: Obesity, which can lead to long-term pressure within the abdomen. Smoking and/or lung disorders, which are often causes of chronic coughing.
Pelvic organ prolapse (POP) is mainly caused by  obstetrics trauma. When a patient has a vaginal delivery, this can cause tearing of the connecting tissue of the pelvic floor which would then subsequently cause a weakness or hernia and then pelvic organ prolapse (POP).
Causes of pelvic organ prolapse include childbirth and prior surgery, says Victor Grigoriev, MD, a urologist at MountainView Hospital. In this video, he explains that the causes of pelvic organ prolapse are similar to those of urinary incontinence.