The yellow discharge on the patient’s shorts, caused by the appearance of yellow leucorrhea in women, may be due to the following factors: 1, may be due to the phenomenon of infection in the female vagina, resulting in the yellow leucorrhea caused by vaginitis, clinically more common are bacterial vaginitis, mycobacterial vaginitis. 2, may be caused by suffering from cervicitis, the cervix under the stimulation of inflammation, will also appear 3. It may be caused by pelvic inflammatory disease and adnexitis. When the above symptoms appear, you should promptly go to the hospital to do routine laboratory tests of the white belt, as well as pelvic ultrasound examination, to clarify the cause, and then take active anti-inflammatory treatment measures.