The significance of bladder trabeculation in the female lower urinary system: an objective evaluation by urodynamic studies.

This study aimed to investigate the relationship between bladder trabeculation, urinary function, and the stage of pelvic organ prolapse (POP). The medical records of 104 patients with POP who underwent cystoscopies and urodynamic studies were reviewed retrospectively. Age, incidence of detrusor instability, stage and site of POP, and the parameters of urodynamic studies of patients with and without bladder trabeculation were compared. The difference in the incidence of bladder trabeculation was estimated between patients with and without a suspected bladder outlet obstruction. There were significant differences in the patients' age, stage of POP, and maximal voiding velocity. Patients with a suspected bladder outlet obstruction had a significantly higher incidence of bladder trabeculation. In addition, patients with advanced stages of POP were also found to have a higher incidence of bladder trabeculation.