Structural, functional, and dysfunctional pelvic anatomy.

The structural basis of the Integral Theory is holistic. Four main pelvic muscles interact holistically with five main pelvic ligaments to maintain pelvic organ structure and function. The vagina is structurally weak. The support it provides to the bladder base is contingent on being stretched by opposite pelvic muscle forces, much like a trampoline. Its main role is to transmit muscle forces to facilitate continence, evacuation and control of urgency. Therefore, as an organ that cannot regenerate, the vagina should be conserved, and not excised. The ligaments provide the main structural support for the organs and are the most vulnerable part of the anatomical system to injury because their structural collagen is depolymerized prior to labour, and stretched during labour. Further ligament weakening occurs after menopause due to collagen breakdown. Hence, collagen loss is the main cause of organ prolapse and lower urinary tract symptoms (LUTS). The strengthening of damaged ligaments, whether surgically or non-surgically, can improve or cure symptoms and prolapse. Because collagen loss in ligaments is a principal cause of dysfunction in older women, collagen-creating techniques are advised: precisely inserted tapes to create neoligaments, or wide-bore No. 2 or No. 3 polyester ligament sutures instead of dissolvable sutures.