What causes white vaginal discharge? Outbreaks of HSV often are associated with stress or emotional distress. When this organism infects the vagina, it can cause a frothy, greenish-yellow discharge. Food and Drug Administration. Women are at higher risk of developing a UTI than men. Kidney stones develop when the levels of certain substances such as uric acid or calcium oxalate in the body get too high. However, the pooling of urine in the vagina during micturition is a well-known phenomenon cause of urine discharge from vagina both girls and women, and it does not always lead to urinary incontinence. The most common types of vaginitis are: