A fistula is an abnomal communication between two areas of the body.
A vesico-vaginal fistula is an abnormal communication between the bladder and the vagina.
A urethro-vaginal fistula is an abnormal communication between the urethra and the vagina.
These both result in urine leaking out the vagina. This leakage is usually constant and severe or large in volume.
Although in third world countries with poor obstetric care can result in fistulas from chilbirth in Australia most result from complications after surgery. Other diseases or following radiotherapy also be the causes.
Management requires referral to a urologist for evaluation and often surgery.