The abdominal distension and abnormal leucorrhea are often caused by the following reasons: 1. chronic inflammation of the pelvic cavity. The relatively large size of these tumors can also cause pain in the small abdomen, which can lead to increased vaginal discharge. When this symptom occurs, you must go to the hospital in time for examination, mainly through gynecological examination and through ultrasound examination, which can make a preliminary diagnosis, and then give the corresponding treatment according to the diagnosis clinical.