What can cause yellow vaginal discharge other than yeast infection?

Infection?: Colored (yellow, tan, etc) vaginal discharge often means an infection, including STDs if at risk. Yeast usually does NOT cause colored discharge -- usually little discharge, generally white and thick. (The main yeast symptom is itching and irritation.) Any new, abnormal, or unexplained vaginal discharge needs professional evaluation, so see your doctor soon. Good luck!