The pelvis, also known as the pelvic bone, is a deep structure located in the lower part of the abdominal cavity that houses the uterus and other genital organs. These organs are supported and held in place by a network of muscles and connective tissues, collectively known as the pelvic floor, much like a hammock.

However, in some cases, these supportive tissues can weaken or tear due to various factors, particularly challenging or prolonged labors, multiple births, or individual predisposition (congenital elasticity of connective tissue). The natural aging process of tissues leading to functional loss during menopause is also a risk factor.

As a result of this weakening or damage, the pelvic floor structure is compromised, and pelvic organs, primarily the uterus, begin to descend into or beyond the vaginal canal. This condition is called organ prolapse, and when it involves the uterus, it is specifically referred to as 'uterine prolapse'.

Key risk factors for uterine prolapse include:
* Prolonged labor
* History of delivering a large baby
* Multiple births
* Difficult labor processes
* Reduced tissue function during the menopausal period.