Yellowing of the leukorrhea has the following clinical causes: first, it is caused by inflammation of the vaginal mucosa; second, it is caused by chronic inflammation of the cervix or acute inflammation of the cervix, often accompanied by lumbosacral pain; third, it is caused by chronic inflammation of the pelvis, resulting in yellowing of the vaginal discharge. This condition often presents with repeated lower abdominal pain, especially after sex, menstruation or exertion, and the patient may feel fatigued and mentally depressed. In this case, it is recommended to give clinical anti-inflammatory treatment and, if necessary, ultrasound examination to find out whether inflammatory masses have formed in the pelvic cavity and then decide whether to treat with antibiotics or surgery according to the results.