The high amount of leukorrhea before menstruation may be a normal physiological phenomenon, or it may be caused by gynecological inflammation. 1. Physiological phenomenon: women before menstruation due to increased hormone levels in the body, coupled with high metabolism and pelvic congestion, will lead to cervical glands and vaginal secretions increase, which will increase the phenomenon of leucorrhoea, usually milky white, viscous secretions, no odor and other discomfort. It is a normal physiological phenomenon and does not need to be treated. 2. Gynecological inflammation: some women have an increase in leukorrhea before menstruation, but there is a change in color and trait, odor and itching and other discomforts, which is caused by inflammation, most commonly seen in vaginitis, pelvic inflammatory disease or cervicitis and other diseases, generally need to be examined for the cause of the treatment. Before menstruation, you need to pay attention to the hygiene and care of the leukorrhea, change and wash your underwear, and if you have uncomfortable symptoms, you need to go to the hospital in a timely manner, combined with the leukorrhea routine, pelvic ultrasound and other tests by a professional doctor, to clarify the causes of the disease, and then treat the symptoms.