If the leukorrhea is watery and has no odor, the most common clinical cause is cancer of the fallopian tubes. When tubal cancer is present, the main clinical manifestations are a mass in the lower abdomen and a watery leucorrhea. In clinical practice, when combined with medical history and gynecological examination, a mass in the lower abdomen is often found. Once a mixed pelvic mass is found, early surgical treatment is recommended. In addition, it is also recommended to rule out the possibility of vaginal bladder fistula, and further examination is recommended to distinguish whether or not the vaginal bladder fistula is the cause of the watery leukorrhea. Whatever the cause of this condition, it is advisable to keep the vulva clean.