Diagnostic algorithm. A “shorthand” diagnostic method where symptoms indicate which ligaments are causing which prolapse and which symptoms. The connective tissue structures fall naturally into 3 zones of causation. Ticking symptom occurrence diagnoses ligament defect and serves as a guide to surgery. For example, nocturia and pelvic pain are almost exclusively caused by “USL”; laxity; stress incontinence, by pubourethral laxity “PUL.” We have entered quantum of symptoms in numbers instead of ticking the boxes. The conditions in all 3 columns are caused by ligament laxity. Only some conditions in the right column can be attributed to IC, as defined [2]. Anterior zone runs from external meatus to bladder neck, and comprises EUL (external urethral ligament); PUL (pubourethral ligament); and suburethral vaginal hammock. Middle zone runs from bladder neck to anterior cervical ring and comprises PCF (pubocervical fascia); CL (cardinal ligament); and ATFP (arcus tendineus fascia pelvis). Posterior zone runs from USL (uterosacral ligament); RVF (rectovaginal fascia); to PB (perineal body). The height of the bar indicates probability of causation.