What causes yellow vaginal discharge?

Yellowish vaginal discharge may be caused by physiological factors. Due to natural oxidation of the discharge when exposed to air, its color may gradually turn light yellow, which is a normal physiological phenomenon that requires no excessive concern or special treatment. However, yellow discharge can also result from pathological causes, often associated with pelvic inflammatory disease and vaginitis, such as pelvic inflammation, adnexitis, cervicitis, and vaginitis. These conditions may lead to noticeable changes in the color of vaginal discharge. Women are advised to promptly visit the gynecology department of a reputable hospital for vaginal discharge testing and other relevant examinations to determine the specific cause and type of condition, thereby receiving targeted treatment.