What causes yellow vaginal discharge?

Yellowish vaginal discharge can be due to physiological reasons, primarily caused by oxidation of normal discharge turning it light yellow. If the amount is normal and there is no unusual odor, no treatment is necessary. However, yellow discharge may also result from bacterial or microbial infections leading to conditions such as vaginitis or pelvic inflammatory disease. In such cases, a visit to the hospital is recommended for routine vaginal secretion tests and gynecological examinations to identify the specific type of infection and receive appropriate treatment.