What are the clinical types of urogenital fistula?

The abnormal passage formed between human urinary system and reproductive tract is called urinary fistula. According to the location of urogenital fistula, it can be divided into vesicovaginal fistula (the most common), urethrovaginal fistula, bladder neck fistula, vesicovaginal fistula and ureterovaginal fistula. Sometimes two or more kinds of urinary fistula can coexist at the same time.