There are a number of causes for pelvic floor weakening. Like any other muscle in the body, the aging process can decrease the function of the pelvic floor over time without regular strength training. Giving birth is a beautiful experience, however the aftercare is an essential part of recovery. The excess weight and pressure on the pelvic floor can compromise it's function, not to mention the loosening of the tissues to create space in the pelvis during pregnancy and the birthing process. Trauma events causing physical and psychological injury can be a detriment to pelvic floor health.
Indications that you have a weak pelvic floor are the inability to hold in urine when you sneeze, jump, laugh, cough or exercise.