Female vulva often yellow can be caused by vaginitis, vulvitis, cervicitis and endometritis and other diseases. 1. Vaginitis: Because the vulva and vagina are adjacent to anus and urethra, the local moist and easy to be infected, or frequent sexual life, infection of Trichomonas vaginalis and other pathogens can cause vaginitis, yellow leukorrhea can appear, and yellow vulva appears. 2. Vulvovaginitis: the vulva is stimulated by menstrual blood and urine for a long time, and inflammation can occur after local infection, which can cause yellow granules in the vulva, resulting in yellowing of the vulva. 3. Cervicitis: frequent sexual intercourse or uterine operation damage and other factors, can trigger cervical inflammation, the progress of the disease can appear cervical erosion-like changes, can cause yellow purulent leukorrhea, resulting in yellowing of the vulva. 4. Endometritis: after abortion, postpartum, cesarean section or gynecological surgery, it may cause trauma to the endometrium, and bacteria entering the trauma can cause endometritis, which in turn causes an increase in leukorrhea, which can be purulent and yellow, resulting in yellowing of the vulva. When yellowing of the vulva occurs, it is important to consult a doctor in a timely manner, and under the guidance of a specialized doctor, actively carry out the appropriate treatment, which will help to alleviate the uncomfortable symptoms as soon as possible.